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WO2018124674A2 - Cellule de batterie cylindrique ayant un tube thermorétractable comprenant un stabilisateur d'ultraviolets - Google Patents

Cellule de batterie cylindrique ayant un tube thermorétractable comprenant un stabilisateur d'ultraviolets Download PDF

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Publication number
WO2018124674A2
WO2018124674A2 PCT/KR2017/015431 KR2017015431W WO2018124674A2 WO 2018124674 A2 WO2018124674 A2 WO 2018124674A2 KR 2017015431 W KR2017015431 W KR 2017015431W WO 2018124674 A2 WO2018124674 A2 WO 2018124674A2
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WO
WIPO (PCT)
Prior art keywords
battery cell
heat
shrinkable tube
cylindrical battery
nylon
Prior art date
Application number
PCT/KR2017/015431
Other languages
English (en)
Korean (ko)
Other versions
WO2018124674A3 (fr
Inventor
김준탁
이제준
황보광수
정상석
이길영
Original Assignee
주식회사 엘지화학
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to JP2019515954A priority Critical patent/JP6870814B2/ja
Priority to US16/461,223 priority patent/US11367911B2/en
Priority to CN201780074872.4A priority patent/CN110036500B/zh
Priority to PL17888526.5T priority patent/PL3528303T3/pl
Priority to EP17888526.5A priority patent/EP3528303B1/fr
Priority to ES17888526T priority patent/ES2993938T3/es
Priority claimed from KR1020170179163A external-priority patent/KR102178899B1/ko
Publication of WO2018124674A2 publication Critical patent/WO2018124674A2/fr
Publication of WO2018124674A3 publication Critical patent/WO2018124674A3/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/101—Esters; Ether-esters of monocarboxylic acids
    • C08K5/105—Esters; Ether-esters of monocarboxylic acids with phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • C08K5/132—Phenols containing keto groups, e.g. benzophenones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C08L67/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a cylindrical battery cell having a heat shrinkable tube containing an ultraviolet stabilizer.
  • the secondary battery is a cylindrical battery and a rectangular battery in which the electrode assembly is embedded in a cylindrical or rectangular metal can, and a pouch type battery in which the electrode assembly is embedded in a pouch type case of an aluminum laminate sheet according to the shape of the battery case.
  • the electrode assembly embedded in the battery case is a power generator capable of charging and discharging composed of a positive electrode, a negative electrode, and a separator structure interposed between the positive electrode and the negative electrode. It is roughly classified into a wound jelly-roll type and a stack type in which a plurality of positive and negative electrodes of a predetermined size are sequentially stacked in a state of being interposed in a separator.
  • FIG. 1 schematically shows a vertical cross-sectional perspective view of a conventional cylindrical battery.
  • the cylindrical secondary battery 10 accommodates a jelly-roll type (wound) electrode assembly 12 in a cylindrical case 13 and injects an electrolyte solution into the cylindrical case 13, followed by a case 13.
  • the cap assembly 14 in which the electrode terminal (for example, a positive electrode terminal) is formed in the open upper end of the) is manufactured.
  • the cylindrical secondary battery covers the outer surface of the battery case using a tube made of a film of an electrically insulating plastic material in order to perform an insulating function and an external protective function with an external conductive material.
  • the outer tube for cylindrical secondary batteries of the prior art had a problem that the original insulation and appearance protection functions are lost, such as damage or discoloration of the film when exposed to ultraviolet (UV) for a long time.
  • UV ultraviolet
  • the tube was added to the outer surface of the battery case of the cylindrical secondary battery, the tube was exposed to high temperature, or the tube was easily deformed due to an external impact, thereby causing problems.
  • the present invention aims to solve the problems of the prior art as described above and the technical problems that have been requested from the past.
  • the free radical produced by cutting the polymer chain of the nylon resin or polyester resin by ultraviolet rays irradiated to the heat shrinkable tube When the UV stabilizer (UV Stabilizer) that suppresses the chain reaction is included, it was confirmed that the desired effect can be achieved and came to complete the present invention.
  • UV stabilizer UV Stabilizer
  • a cylindrical battery cell is wrapped around the outer surface of the cylindrical case except for the electrode terminal, the heat shrinkable tube,
  • UV stabilizer UV Stabilizer to suppress the chain reaction of the free radicals generated by cutting the polymer chain of the nylon resin or polyester resin by the ultraviolet light irradiated to the heat-shrinkable tube;
  • the cylindrical battery cell according to the present invention by including a UV stabilizer that suppresses the chain reaction of free radicals generated by cutting the polymer chain of the nylon resin or polyester resin by ultraviolet rays irradiated to the heat-shrinkable tube, Even if the heat-shrinkable tube is exposed to ultraviolet light for a long time, the film is not damaged or discolored, so that the insulation and appearance protection function of the heat shrinkage can be maintained well.
  • the cylindrical battery cell according to the present invention by using a reinforcing agent of nylon resin to increase the tensile strength and the use temperature of the heat-shrinkable tube in the heat-shrinkable tube is exposed to high temperature, or the tube is easily deformed due to external impact Can be prevented.
  • the heat-shrinkable tube may further include a pigment for imparting color, and thus may be distinguished and displayed by different colors, such as capacity of a battery cell, and thus may be easily classified and distinguished.
  • the polyester-based resin may be, for example, polyethylene terephthalate resin.
  • the polyester-based resin may be included in 70% to 90% by weight based on the total weight of the tube, more specifically, when the polyester-based resin is included in less than 70% by weight, Difficult to obtain the proper heat shrinkage rate required by the invention is difficult to properly exhibit the function of the heat shrink tube, on the contrary, when more than 90% by weight when exposed to high temperature easily deformed or deformed of the tube easily occurs.
  • the thickness of the heat shrinkable tube for the cylindrical secondary battery may be 1 ⁇ m to 100 ⁇ m.
  • the UV stabilizer may be a benzoate-based compound, specifically, the benzoate-based compound may be butyl-4-hydroxybenzoate.
  • the UV stabilizer may be included in 0.1% by weight to 5% by weight based on the total weight of the heat-shrinkable tube, in detail may be included in 0.5% by weight to 5% by weight, more specifically the UV stabilizer
  • the function of inhibiting the chain reaction of the generated free radicals of the ultraviolet light stabilizer is not exhibited throughout the tube, it is difficult to prevent the occurrence of cracks due to ultraviolet irradiation, on the contrary, if it exceeds 5% by weight, Too much UV stabilizer is added to the problem that the manufacturing cost is excessively high compared to the UV stabilization efficacy.
  • the nylon-based resin may be nylon 66
  • the nylon 66 has a relatively high heat deformation temperature of 70 degrees Celsius, a heat resistance temperature of 105 degrees Celsius, a tensile modulus of 2.9 ⁇ 104 kg / cm2, Flexural modulus is 3.0 ⁇ 104 kg / cm2.
  • Flexural modulus is 3.0 ⁇ 104 kg / cm2.
  • nylon 6-10 and nylon 6-12 it has high heat resistance and high mechanical rigidity.
  • nylon-based resin may be included in 3% by weight to 10% by weight based on the total weight of the heat shrinkable tube.
  • nylon-based resin may be included in a blended state in the polyester-based resin.
  • the pigment may be included in 10% to 20% by weight based on the total weight of the heat shrinkable tube.
  • the heat-shrinkable tube according to the present invention will not generate cracks even after 1000 hours of exposure under the condition that the light intensity of ultraviolet light is 61.5 W / m 2 and the wavelength of light is 300 nm to 400 nm. Can be.
  • the heat-shrinkable tube may further include an ultraviolet absorber for absorbing the emitted ultraviolet rays to release the thermal energy
  • the ultraviolet absorber may be a benzophenone-based compound, the benzophenone-based
  • the compound may be, for example, hydroxy benzophenone.
  • the heat-shrinkable tube according to the present invention can not only prevent cracks from occurring in the film as an ultraviolet stabilizer, but also further include an ultraviolet absorber that absorbs the irradiated ultraviolet rays and releases them as thermal energy. It can prevent the oxidation (decomposition) reaction to occur, and can prevent the deterioration of the tube due to ultraviolet rays for a longer time.
  • the cylindrical battery cell may be a secondary battery
  • the secondary battery is not particularly limited in its kind, but as a specific example, lithium having advantages such as high energy density, discharge voltage, output stability, etc.
  • Lithium secondary batteries such as ion batteries, lithium ion polymer batteries, and the like.
  • a lithium secondary battery is composed of a positive electrode, a negative electrode, a separator, and a lithium salt-containing nonaqueous electrolyte.
  • the positive electrode may be prepared by, for example, applying a positive electrode active material composed of positive electrode active material particles to a positive electrode current collector, and a positive electrode mixture in which a conductive material and a binder are mixed. More fillers may be added.
  • the positive electrode current collector is generally manufactured to a thickness of 3 to 201 ⁇ m, and is not particularly limited as long as it has high conductivity without causing chemical change in the battery.
  • stainless steel, aluminum, nickel, titanium , And one selected from surface treated with carbon, nickel, titanium, or silver on the surface of aluminum or stainless steel may be used, and in detail, aluminum may be used.
  • the current collector may form fine irregularities on its surface to increase the adhesion of the positive electrode active material, and may be in various forms such as film, sheet, foil, net, porous body, foam, and nonwoven fabric.
  • the conductive material is typically added in an amount of 0.1 to 30% by weight based on the total weight of the mixture including the positive electrode active material.
  • a conductive material is not particularly limited as long as it has conductivity without causing chemical change in the battery, and examples thereof include graphite such as natural graphite and artificial graphite; Carbon blacks such as carbon black, acetylene black, Ketjen black, channel black, furnace black, lamp black, and summer black; Conductive fibers such as carbon fibers and metal fibers; Metal powders such as carbon fluoride powder, aluminum powder and nickel powder; Conductive whiskeys such as zinc oxide and potassium titanate; Conductive metal oxides such as titanium oxide; Conductive materials such as polyphenylene derivatives and the like can be used.
  • the binder included in the positive electrode is a component that assists in bonding the active material, the conductive material, and the like to the current collector, and is generally added in an amount of 0.1 to 30 wt% based on the total weight of the mixture including the positive electrode active material.
  • binders examples include polyvinylidene fluoride, polyvinyl alcohol, carboxymethyl cellulose (CMC), starch, hydroxypropyl cellulose, regenerated cellulose, polyvinylpyrrolidone, tetrafluoroethylene, polyethylene , Polypropylene, ethylene-propylene-diene terpolymer (EPDM), sulfonated EPDM, styrene-butadiene rubber, fluorine rubber, various copolymers, and the like.
  • CMC carboxymethyl cellulose
  • EPDM ethylene-propylene-diene terpolymer
  • EPDM ethylene-propylene-diene terpolymer
  • EPDM ethylene-propylene-diene terpolymer
  • EPDM ethylene-propylene-diene terpolymer
  • sulfonated EPDM styrene-butadiene rubber
  • fluorine rubber various copolymers, and the like.
  • the negative electrode is manufactured by coating and drying a negative electrode active material on a negative electrode current collector, and optionally, the components included in the positive electrode described above may be further included as necessary.
  • the negative electrode current collector is generally made to a thickness of 3 to 500 micrometers.
  • the negative electrode current collector is not particularly limited as long as it has conductivity without causing chemical change in the battery.
  • a surface of copper, stainless steel, aluminum, nickel, titanium, calcined carbon, copper, or stainless steel may be used.
  • Surface-treated with carbon, nickel, titanium, silver and the like, aluminum-cadmium alloy and the like can be used.
  • fine concavities and convexities may be formed on the surface to enhance the bonding strength of the negative electrode active material, and may be used in various forms such as a film, a sheet, a foil, a net, a porous body, a foam, and a nonwoven fabric.
  • carbon such as hardly graphitized carbon and graphite type carbon
  • Me Metal composite oxides such as Al, B, P, Si, Group 1, Group 2, Group 3 elements of the periodic table, halogen, 0 ⁇ x ⁇ 1; 1 ⁇ y ⁇ 3; 1 ⁇ z ⁇ 8
  • Lithium metal Lithium alloys; Silicon-based alloys; Tin-based alloys; SnO, SnO 2 , PbO, PbO 2 , Pb 2 O 3 , Pb 3 O 4 , Sb 2 O 3 , Sb 2 O 4 , Sb 2 O 5 , GeO, GeO 2 , Bi 2 O 3 , Bi 2 O 4 , and metal oxides such as Bi 2 O 5
  • the separator is interposed between the anode and the cathode, and an insulating thin film having high ion permeability and mechanical strength is used.
  • the pore diameter of the separator is generally from 0.01 to 10 ⁇ m ⁇ m, thickness is generally 5 ⁇ 300 ⁇ m.
  • a separator for example, olefin polymers such as chemical resistance and hydrophobic polypropylene; Sheets or non-woven fabrics made of glass fibers or polyethylene are used.
  • a solid electrolyte such as a polymer
  • the solid electrolyte may also serve as a separator.
  • the said lithium salt containing non-aqueous electrolyte solution consists of a nonaqueous electrolyte solution and a lithium salt.
  • nonaqueous electrolyte nonaqueous organic solvents, organic solid electrolytes, inorganic solid electrolytes, and the like are used, but not limited thereto.
  • FIG. 1 is a vertical cross-sectional perspective view of a cylindrical cell of the prior art
  • FIG. 3 is a schematic view for explaining the mechanism of the ultraviolet stabilizer contained in the heat-shrinkable tube of the present invention.
  • Figure 4 is a photograph showing the results of Example 1 in Experimental Example 2.
  • FIG. 6 shows a stress deformation curve (S-S Curve) of Example 1 in Experimental Example 3.
  • FIG. 6 shows a stress deformation curve (S-S Curve) of Example 1 in Experimental Example 3.
  • Heat-shrinkable tubes were prepared in the same manner as in Example 1, except that butyl-4-hydroxybenzoate and nylon 66, which are ultraviolet stabilizers, were prepared without using a UV stabilizer.
  • a heat shrinkable tube was prepared in the same manner as in Example 1 except that the resin composition was prepared without using butyl-4-hydroxybenzoate, which is an ultraviolet stabilizer.
  • a heat shrinkable tube was prepared in the same manner as in Example 1 except that the resin composition was prepared without using nylon 66.
  • Example 2 of the present invention discloses a photograph showing an experimental procedure of Experimental Example 1.
  • the heat-shrinkable tubes 110 prepared in Example 1 and Comparative Examples 1 to 3 are disposed 3 cm apart from the lamp of the ultraviolet irradiator 200 so that the light intensity is 61.5 W / m 2 and the light is The wavelength was 300 nm to 400 nm, and after exposure for 1,000 hours in an atmosphere condition of 50 degrees Celsius, it was confirmed whether cracks were generated on the tube surface.
  • Figure 3 is a schematic diagram for explaining the mechanism of the ultraviolet stabilizer contained in the heat shrinkable tube of the present invention.
  • free radicals 120 and ultraviolet stabilizers 130 generated by cutting polymer chains of a nylon-based resin or a polyester-based resin by ultraviolet rays irradiated to the heat-shrinkable tube 110 from the ultraviolet irradiator 200. ) May inhibit the chain reaction of the free radicals 120.
  • the heat-shrinkable tube prepared in Example 1 and the heat-shrinkable tube prepared in Comparative Example 2 were prepared, and black letters were printed on the tube surface.
  • the heat shrinkable tubes were exposed to an ultraviolet irradiator having a light intensity of 61.5 W / m 2 and a wavelength of light of 300 nm to 400 nm for 500 hours, and then the color change of the black letters was confirmed. 5 is shown.
  • FIG. 4 shows the color change of the heat-shrinkable tube of Example 1
  • FIG. 5 shows the color change of the heat-shrinkable tube of Comparative Example 2.
  • Example 1 the color change of the letter is hardly seen in the state before and after the UV irradiation, but in Comparative Example 2, the color of the letter is changed from black to gray. You can see that it is very cloudy. Therefore, when the ultraviolet absorber is included, it does not affect the color change of the tube, but when it is not included, it can be seen that the color change is remarkable.
  • Example 1 The results of Example 1 are shown in FIG. 6, and the results of Comparative Example 3 are shown in FIG. 7. The specific values are shown in Table 2 below.
  • Example 1 Comparative Example 3 Tensile Strength (Kgf / cm 2 ) 636 (average) 569 (average) Elongation (%) 750 (average) 683 (average)
  • the tensile strength and elongation of the heat-shrinkable tube of Example 1 show a remarkably improved value when compared to the heat-shrinkable tube of Comparative Example 3. Accordingly, it can be seen that the heat shrinkable tube including the UV stabilizer and nylon has improved mechanical rigidity than the heat shrinkable tube without the nylon. This is believed to be due to the high tensile strength and elastic nylon.
  • the heat-shrinkable tube of the present invention includes a nylon-based resin and an ultraviolet stabilizer in the tube base material, and the heat-shrinkable tube containing any one of the nylon-based resin or the ultraviolet stabilizer may generate cracks. Suppressed.
  • the nylon-based resin is included but does not contain an ultraviolet stabilizer, the effect of increasing the tensile strength and elongation can be obtained, but it was confirmed that the color change is remarkable for ultraviolet irradiation.
  • the present invention exhibits the synergistic effect obtained by including both the nylon-based resin and the ultraviolet absorber, so that cracks can be prevented from occurring in the tube, and discoloration against ultraviolet rays can be prevented.
  • the cylindrical battery cell according to the present invention UV stabilizer that suppresses the chain reaction of the free radicals generated by cutting the polymer chain of the nylon resin or polyester resin by ultraviolet rays irradiated to the heat-shrinkable tube If it includes, even if the heat-shrinkable tube is exposed to ultraviolet rays for a long time does not damage or discolor the tube has the effect of maintaining the original insulation and appearance protection function well.
  • the cylindrical battery cell according to the present invention by using a reinforcing agent of nylon-based resin to increase the tensile strength and the use temperature of the heat shrinkable tube in the heat shrinkable tube, the tube is exposed to high temperature, or the tube is easily deformed due to external impact It is effective to prevent that.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

La présente invention concerne une cellule de batterie cylindrique ayant un tube thermorétractable enveloppant la surface externe d'un boîtier cylindrique à l'exclusion de parties de borne d'électrode, le tube thermorétractable comprenant : une base de tube constituée d'une résine à base de polyester ayant une rétractabilité à la chaleur ; un agent de renforcement fait d'une résine de nylon permettant d'augmenter la résistance à la traction et la température d'utilisation du tube thermorétractable ; et un stabilisateur d'ultraviolets permettant de supprimer une réaction en chaîne de radicaux libres qui sont générés par des chaînes polymères d'une résine à base de nylon ou d'une résine à base de polyester qui sont coupées par des rayons ultraviolets irradiés vers le tube thermorétractable.
PCT/KR2017/015431 2016-12-26 2017-12-26 Cellule de batterie cylindrique ayant un tube thermorétractable comprenant un stabilisateur d'ultraviolets WO2018124674A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2019515954A JP6870814B2 (ja) 2016-12-26 2017-12-26 紫外線安定剤を含む熱収縮性チューブを備えた円筒型電池セル
US16/461,223 US11367911B2 (en) 2016-12-26 2017-12-26 Cylindrical battery cell having heat-shrinkable tube comprising ultraviolet stabilizer
CN201780074872.4A CN110036500B (zh) 2016-12-26 2017-12-26 具有含紫外线稳定剂的热收缩管的圆柱形电池单元
PL17888526.5T PL3528303T3 (pl) 2016-12-26 2017-12-26 Cylindryczne ogniwo akumulatorowe mające rurkę termokurczliwą zawierającą stabilizator ultrafioletu
EP17888526.5A EP3528303B1 (fr) 2016-12-26 2017-12-26 Cellule de batterie cylindrique ayant un tube thermorétractable comprenant un stabilisateur d'ultraviolets
ES17888526T ES2993938T3 (en) 2016-12-26 2017-12-26 Cylindrical battery cell having heat-shrinkable tube comprising ultraviolet stabilizer

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2016-0178714 2016-12-26
KR20160178714 2016-12-26
KR10-2017-0179163 2017-12-26
KR1020170179163A KR102178899B1 (ko) 2016-12-26 2017-12-26 자외선 안정제를 포함하는 열수축성 튜브를 구비한 원통형 전지셀

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WO2018124674A2 true WO2018124674A2 (fr) 2018-07-05
WO2018124674A3 WO2018124674A3 (fr) 2018-08-16

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002348236A1 (en) * 2001-12-27 2003-07-24 Cytec Technology Corp. Uv stabilized thermoplastic olefins
FR2896445B1 (fr) * 2006-01-25 2010-08-20 Arkema Film flexible a base de polymere fluore
JP2007323907A (ja) * 2006-05-31 2007-12-13 Sony Corp 電池外装材及びこれを用いた非水電解質二次電池
KR101524506B1 (ko) * 2009-12-21 2015-06-01 생-고뱅 퍼포먼스 플라스틱스 코포레이션 열전도성 폼 재료
KR101569452B1 (ko) * 2012-11-29 2015-11-16 주식회사 엘지화학 열수축성 튜브를 포함하는 이차전지
US9209443B2 (en) * 2013-01-10 2015-12-08 Sabic Global Technologies B.V. Laser-perforated porous solid-state films and applications thereof

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