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WO2003030281A1 - Pile electrochimique avec bornes - Google Patents

Pile electrochimique avec bornes Download PDF

Info

Publication number
WO2003030281A1
WO2003030281A1 PCT/JP2002/009811 JP0209811W WO03030281A1 WO 2003030281 A1 WO2003030281 A1 WO 2003030281A1 JP 0209811 W JP0209811 W JP 0209811W WO 03030281 A1 WO03030281 A1 WO 03030281A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
terminal
substrate
case
terminals
Prior art date
Application number
PCT/JP2002/009811
Other languages
English (en)
Japanese (ja)
Inventor
Masatoshi Komori
Masaki Yamaguchi
Eiji Okamoto
Original Assignee
Kanebo, Limited
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 Kanebo, Limited filed Critical Kanebo, Limited
Priority to JP2003533364A priority Critical patent/JP4250528B2/ja
Publication of WO2003030281A1 publication Critical patent/WO2003030281A1/fr

Links

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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • 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

Definitions

  • the present invention relates to a button-type or coin-type electrochemical cell, and more particularly to a terminal-equipped electrochemical cell having terminals for surface mounting on a circuit board.
  • soldering is performed by a reflow heat source set at a temperature equal to or higher than the melting point of solder (hereinafter referred to as reflow soldering).
  • various batteries are used in these mopile devices.
  • primary batteries such as alkaline batteries and lithium batteries, or various secondary batteries such as lithium ion batteries and nickel-metal hydride batteries are used as the main power supply, and these batteries can be replaced by equipment users as necessary.
  • Z or recharged are used in addition to the main power supply, various types of primary or secondary batteries are used for memory backup and real-time clock backup, and most of these batteries are pre-installed in equipment.
  • An object of the present invention is to provide an electrochemical cell with terminals which is excellent in heat resistance, can be reflow soldered, and occupies a minimum space when surface-mounted on a substrate.
  • the above object is achieved by welding a power generating element, a positive electrode and a negative electrode cell case that shield the power generating element from the outside atmosphere and also function as a current collector of the power generating element, and a positive electrode and a negative electrode cell case to be mounted on a substrate.
  • a button-type or coin-type electrochemical cell composed of terminals, of the terminals, terminal A, which is welded to a cell case that is not close to the substrate, is in contact with and parallel to the cell case flat surface; Surface B that is continuous and not coplanar and faces the cell thickness direction, and Surface B is continuous and not coplanar and faces in the same parallel direction as surface A
  • the terminal 2 to be welded to the cell case adjacent to the substrate is a terminal having at least one step between a surface to be welded to the cell case and a surface to be grounded to the substrate.
  • the electrochemical cell with terminals, or at least the surface B of the terminal has an opening, and the length Lb of the opening in the cell thickness direction is the height of the cell case where the diameter of the positive and negative electrode cell cases is larger. Lb> H with respect to H, and the distance Rb from the surface B with the opening and the cell center is achieved by the above terminal-equipped electrochemical cell that satisfies R ⁇ Rb with respect to the radius R of the cell alone.
  • FIG. 1 is a drawing of an electrochemical cell with terminals according to the present invention.
  • the shaded area indicates the surface where the soldering for grounding to the board will arrive.
  • FIG. 2 is a drawing of another embodiment according to the present invention.
  • the shaded area indicates the surface on which soldering for landing on the substrate is to be made.
  • FIG. 3 is a drawing of still another embodiment according to the present invention.
  • the shaded area indicates the surface on which soldering for grounding to the substrate will arrive.
  • FIG. 4 is a diagram showing a conventional cell with terminals. The shaded area indicates the surface grounded to the substrate.
  • the terminal 1 to be welded to the cell case that is not close to the substrate has an A surface that is in contact with and parallel to the cell case flat surface, and a surface in the cell thickness direction that is continuous with the A surface and is not coplanar.
  • B side, and the B side is continuous and It has three planes, C-plane, which are not in one plane but face in the same parallel direction as A-plane.
  • the same parallel direction means that the A-plane and the C-plane exist in the same spatial direction with respect to two spaces separated by the plane including the B-plane. Sides A and C need not be particularly parallel.
  • the shape of the terminal is not particularly limited, and examples thereof include a terminal having a substantially U-shaped cross section including all of ABC. At this time, there is no particular limitation on the difference between the lengths of the plane A and plane C on the cross section. Further, the vertical height of the surface B is preferably larger than the shoulder height of the cell, and more preferably larger than the cell height. In consideration of dimensional balance, soldering strength, and the like, the vertical height of the surface B is preferably about the level difference of the terminal welded to the cell case close to the substrate + the cell thickness ⁇ 200 m.
  • the terminal 2 to be welded to the cell case close to the substrate preferably has at least one step between a surface to be welded to the cell case and a surface to be grounded to the substrate.
  • the terminal step is the vertical distance between the grounding surface of terminal 2 and the surface welded to the cell case.
  • the size of the step is not particularly limited, but is preferably 200 to 500 m for the following reason. If the step is smaller than 200 m, the distance between the cell case that is not close to the base and the C surface of the terminal that is welded to the cell case is short. There is a high possibility that the C-side of the terminal to be welded to the cell case will be short-circuited due to direct contact, or short-circuited via solder once melted.
  • the height of the terminal-equipped cell is increased, which is not preferable. If the terminal does not have a step, the C surface of the terminal welded to the cell case that is not close to the other base can enter the gap between the substrate and the cell case close to the substrate. As a result, the cells with terminals The area occupied on the board increases.
  • the positional relationship between the terminal 1 and the terminal 2 is not particularly limited. In order to prevent a short circuit between the terminals, it is preferable to arrange the terminals 1 and 2 so as to form an angle of 180 degrees. However, depending on the space shape of the board, for example, terminals 1 and 2 may be 9 terminals. It may be arranged so as to form an angle of 0 degrees. In this case, the U-shaped opening of the terminal 1 may be closed, and a so-called substantially mouth-shaped opening may be employed.
  • the terminal material used in the present invention is not particularly limited as long as it is a generally used metal material. However, various stainless materials, nickel materials, nickel-iron alloys, copper and the like are preferably used. Although the thickness of the terminal is not particularly limited, it is usually preferable that the thickness be 50 to 300 / xm because the welding conditions can be easily set. Further, at least the surface where the terminal is grounded to the substrate is provided with a solder or the like in order to have a sufficient bonding strength between the substrate and the battery with the terminal.
  • the area occupied by the terminal-equipped cell on the surface of the substrate can be reduced.
  • the vertical height Lb of the opening may be at least Lb> H with respect to the height H of the cell case where the diameter of the positive electrode case and the negative electrode cell case is larger, but preferably the cell height Hc On the other hand, it is preferable that L> H1.
  • the distance Rb from the opening on the surface B and the center of the cell can be made equal to or less than the radius R of the cell alone, so that the area occupied by the battery with terminals on the substrate can be reduced.
  • the opening may be an opening that is continuous with the A-plane and the Z- or C-plane.
  • the other ends of the A side and / or the C side other than the B side may not be closed. If the other end of the C side other than the B side is not closed, the area of the part in contact with the board is reduced, but since it is a three-point ground, reflow soldering is possible without reducing strength. is there.
  • the power generating element according to the present invention is not particularly limited as long as it can store electrochemical energy and can extract energy to the outside.
  • the primary and secondary species are not limited.
  • An organic electrolyte battery comprising a protic solvent is preferred.
  • porous carbon materials such as activated carbon or polyacene organic semiconductors for the positive and negative electrodes, other lithium-niobium oxide alloys, and manganese oxide-lithium titanate.
  • the shape of the power generating element in the present invention is not particularly limited, and examples thereof include a device in which a positive electrode and a negative electrode formed in a tablet shape face each other via a separator impregnated with an electrolytic solution. In this case, the other electrode surface that is not in contact with the separator is often glued to the can.
  • the power generating element may be one in which a strip-shaped positive electrode and a negative electrode formed into a current collector such as a foil-mesh are wound through a separator, and the outermost peripheral portion of the strip-shaped electrode is a positive electrode case and a Z or negative electrode case. It is convenient for the work to seal directly by contacting the inner surface.
  • the positive electrode case and the negative electrode case used in the present invention are not particularly limited as long as they are metal materials generally used for batteries, but are preferably various stainless materials having excellent corrosion resistance, pitting corrosion resistance and the like.
  • the positive electrode case and the negative electrode case are usually subjected to pressing such as caulking via a gasket in order to shut off the power generating element from the outside atmosphere without short-circuiting and to maintain airtightness and liquid tightness.
  • the material used for the gasket material examples include polyether ether ketone, polyphenylene sulfide, and fluororesin, which improve moldability.
  • a glass fiber to which glass fibers are added as necessary may be used.
  • Fig. 1 shows an embodiment of the present invention in which terminals are welded to a coin-type cell with a diameter of 4.8 mm and a height of 1.4 mm using an organic capacitor whose main components of the positive electrode and the negative electrode are a polyacene-based organic semiconductor as a power generation element. It is an example.
  • the total height of the terminal cells was 1.7 mm.
  • the power generating element was produced, for example, by the method disclosed in the embodiment of Japanese Patent Application No. 7-137184.
  • the terminals used were made of a SUS304 material having a thickness of 100 m by press molding. Welding of terminals to the cell was performed with a YAG laser welder. In this case, when the area occupied by only the cell body on the substrate was 100, the area ratio occupied by the cells with terminals was 110.
  • FIG. 2 shows another embodiment in which an organic capacity made of a polyacene-based organic semiconductor is used as a power generating element, similarly to the first embodiment.
  • the area occupied by only the cell body on the substrate was 100
  • the area ratio occupied by the cells with terminals was 103%.
  • FIG. 3 shows another embodiment in which an organic capacity made of a polyacene-based organic semiconductor is used as a power generating element, similarly to the first embodiment.
  • Terminal 1 and terminal 2 are arranged at an angle of 90 degrees. In this case, when the area occupied by only the cell body on the substrate was 100, the area ratio occupied by the cells with terminals was 106%.
  • FIG. 3 shows an example of a terminal-equipped cell in which conventional shaped terminals are welded.
  • the area occupied by only the cell body on the plate was 100, the area ratio occupied by the cells with terminals was 137%.
  • the area occupied by the terminal cannot be reduced without reducing the soldering strength, so even if the cell size is reduced, I could't make use of that effect.
  • the area occupied by the terminal-equipped cell on the substrate can be reduced. This effect is particularly significant when at least the B-side of the substantially U-shaped terminal welded to the cell case that is not close to the substrate has an opening, and the effect is particularly large, including miniaturized and integrated electrical products. It can be used effectively for electric appliances.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Primary Cells (AREA)
  • Secondary Cells (AREA)

Abstract

Lorsqu'on utilise une pile ayant approximativement la forme d'une pièce de monnaie ou d'un bouton, on crée un grand espace mort lorsque la pile est montée en surface sur un substrat, et l'espace occupé par les bornes pour le montage en surface est grand. Cette invention résout ces problèmes grâce à une pile électrochimique dans laquelle une borne (1) soudée au boîtier de la pile à distance du substrat comprend une surface A en contact avec la surface plate du boîtier de la pile et parallèle à elle, une surface B continue à partir de la surface A et orientée dans la direction de l'épaisseur de la pile sur un autre plan et une surface C continue à partir de la surface B, mais pas sur le même plan, et orientée dans la même direction parallèle que la surface A.
PCT/JP2002/009811 2001-09-28 2002-09-24 Pile electrochimique avec bornes WO2003030281A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003533364A JP4250528B2 (ja) 2001-09-28 2002-09-24 端子付電気化学セル

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001/299707 2001-09-28
JP2001299707 2001-09-28

Publications (1)

Publication Number Publication Date
WO2003030281A1 true WO2003030281A1 (fr) 2003-04-10

Family

ID=19120412

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/009811 WO2003030281A1 (fr) 2001-09-28 2002-09-24 Pile electrochimique avec bornes

Country Status (3)

Country Link
JP (10) JP4250528B2 (fr)
CN (1) CN1275338C (fr)
WO (1) WO2003030281A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005317850A (ja) * 2004-04-30 2005-11-10 Sii Micro Parts Ltd リード端子付き電気化学セル
JP2007165139A (ja) * 2005-12-14 2007-06-28 Sanyo Electric Co Ltd リード付電池
JP2008108549A (ja) * 2006-10-25 2008-05-08 Matsushita Electric Ind Co Ltd 表面実装用端子付電池
JP2008294001A (ja) * 2001-09-28 2008-12-04 Taiyo Yuden Co Ltd 端子付電気化学セル
JP2010251782A (ja) * 2010-06-14 2010-11-04 Seiko Instruments Inc リード端子付き電気化学セル
WO2012132618A1 (fr) * 2011-03-28 2012-10-04 Ｆｄｋ鳥取株式会社 Dispositif électrochimique équipé de cosses
JP2014045204A (ja) * 2013-10-17 2014-03-13 Seiko Instruments Inc リード端子付き電気化学セル
WO2022196358A1 (fr) * 2021-03-16 2022-09-22 セイコーインスツル株式会社 Pile-bouton équipée de bornes

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009078169A1 (fr) * 2007-12-18 2009-06-25 Panasonic Corporation Condensateur à double couche électrique de type pièce, et élément condensateur à boîtier
JP2012195202A (ja) * 2011-03-17 2012-10-11 Taiyo Yuden Co Ltd 端子付き電気化学セル
JP2018142608A (ja) * 2017-02-27 2018-09-13 株式会社村田製作所 表面実装型電子部品
CN113013556B (zh) * 2019-12-19 2022-07-12 荣耀终端有限公司 纽扣电池焊接结构、电子设备及纽扣电池的安装方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62175565U (fr) * 1986-04-24 1987-11-07
JPS6430158A (en) * 1987-07-24 1989-02-01 Sharp Kk Packaging method for thin battery
JPS6476665A (en) * 1987-09-16 1989-03-22 Fujitsu Ltd Mounting structure for button type cell
JPH06124140A (ja) * 1992-10-12 1994-05-06 Hitachi Ltd 情報処理装置、キーボード装置、あるいは電子機器の電池取付け装置
JPH09161745A (ja) * 1995-12-14 1997-06-20 Matsushita Electric Ind Co Ltd 端子付電池および回路基板

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04159704A (ja) * 1990-10-23 1992-06-02 Nec Corp 電気二重層コンデンサ
JPH0528024U (ja) * 1991-09-20 1993-04-09 エルナー株式会社 電気二重層コンデンサ
JPH0845767A (ja) * 1994-07-30 1996-02-16 Elna Co Ltd 電子部品
JPH0897092A (ja) * 1994-09-22 1996-04-12 Elna Co Ltd 電子部品
JPH08306384A (ja) * 1995-05-10 1996-11-22 Kanebo Ltd 有機電解質電池
JP2000286153A (ja) * 1999-01-29 2000-10-13 Elna Co Ltd 電気二重層コンデンサ
JP2000243377A (ja) * 1999-02-16 2000-09-08 Seiko Instruments Inc リード端子付電池
JP2001028322A (ja) * 1999-07-14 2001-01-30 Rohm Co Ltd 固体電解コンデンサ
JP2001217158A (ja) * 1999-11-25 2001-08-10 Bridgestone Corp 非水電解液電気二重層キャパシタ
JP4250528B2 (ja) * 2001-09-28 2009-04-08 太陽誘電株式会社 端子付電気化学セル

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62175565U (fr) * 1986-04-24 1987-11-07
JPS6430158A (en) * 1987-07-24 1989-02-01 Sharp Kk Packaging method for thin battery
JPS6476665A (en) * 1987-09-16 1989-03-22 Fujitsu Ltd Mounting structure for button type cell
JPH06124140A (ja) * 1992-10-12 1994-05-06 Hitachi Ltd 情報処理装置、キーボード装置、あるいは電子機器の電池取付け装置
JPH09161745A (ja) * 1995-12-14 1997-06-20 Matsushita Electric Ind Co Ltd 端子付電池および回路基板

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008294001A (ja) * 2001-09-28 2008-12-04 Taiyo Yuden Co Ltd 端子付電気化学セル
JP2005317850A (ja) * 2004-04-30 2005-11-10 Sii Micro Parts Ltd リード端子付き電気化学セル
JP4570902B2 (ja) * 2004-04-30 2010-10-27 セイコーインスツル株式会社 リード端子付き電気化学セル
JP2007165139A (ja) * 2005-12-14 2007-06-28 Sanyo Electric Co Ltd リード付電池
JP2008108549A (ja) * 2006-10-25 2008-05-08 Matsushita Electric Ind Co Ltd 表面実装用端子付電池
JP2010251782A (ja) * 2010-06-14 2010-11-04 Seiko Instruments Inc リード端子付き電気化学セル
WO2012132618A1 (fr) * 2011-03-28 2012-10-04 Ｆｄｋ鳥取株式会社 Dispositif électrochimique équipé de cosses
JP2014045204A (ja) * 2013-10-17 2014-03-13 Seiko Instruments Inc リード端子付き電気化学セル
WO2022196358A1 (fr) * 2021-03-16 2022-09-22 セイコーインスツル株式会社 Pile-bouton équipée de bornes
JP7657910B2 (ja) 2021-03-16 2025-04-07 セイコーインスツル株式会社 端子付きボタン型電池

Also Published As

Publication number Publication date
JP5268489B2 (ja) 2013-08-21
JP2012156141A (ja) 2012-08-16
JP2011129540A (ja) 2011-06-30
JP5442793B2 (ja) 2014-03-12
JPWO2003030281A1 (ja) 2005-01-20
CN1557030A (zh) 2004-12-22
JP2014112676A (ja) 2014-06-19
JP2012138373A (ja) 2012-07-19
JP2008294002A (ja) 2008-12-04
JP2014112543A (ja) 2014-06-19
JP2011151037A (ja) 2011-08-04
JP4250528B2 (ja) 2009-04-08
CN1275338C (zh) 2006-09-13
JP2008294001A (ja) 2008-12-04
JP2014075598A (ja) 2014-04-24
JP5268488B2 (ja) 2013-08-21

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