JP3264339B2 - Method of manufacturing lithium battery - Google Patents
Method of manufacturing lithium batteryInfo
- Publication number
- JP3264339B2 JP3264339B2 JP14848293A JP14848293A JP3264339B2 JP 3264339 B2 JP3264339 B2 JP 3264339B2 JP 14848293 A JP14848293 A JP 14848293A JP 14848293 A JP14848293 A JP 14848293A JP 3264339 B2 JP3264339 B2 JP 3264339B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- negative electrode
- positive electrode
- battery case
- lithium battery
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 14
- 229910052744 lithium Inorganic materials 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Primary Cells (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はリチウム電池の製造方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a lithium battery.
【０００２】[0002]
【従来の技術】リチウム電池は高電圧が得られるという
点で注目されているが、近年は正極板、負極板およびセ
パレータからなる極群を複数個積層して大容量化したも
のが注目されている。2. Description of the Related Art Lithium batteries have attracted attention in that high voltage can be obtained. In recent years, lithium batteries having a large capacity by laminating a plurality of electrode groups including a positive electrode plate, a negative electrode plate, and a separator have been attracting attention. I have.
【０００３】上記した大容量化したリチウム電池は、正
極板および負極板から引き出されたリード線を金属リン
グの一端から挿通させた後前記金属リングを圧潰し、金
属リングの他端から突出し前記リード線を対応する極性
の端子にスポット溶接するとともに、蓋と電槽とを密封
して製造されていた。In the above-described lithium battery having a large capacity, a lead wire drawn from a positive electrode plate and a negative electrode plate is inserted through one end of a metal ring, and then the metal ring is crushed and protruded from the other end of the metal ring. It was manufactured by spot welding a wire to a terminal of the corresponding polarity and sealing the lid and the battery case.
【０００４】[0004]
【発明が解決しようとする課題】上記した従来のリチウ
ム電池の製造方法では、積層する極群数が多くなると、
スポット溶接の作業が煩雑になってスポット溶接が不完
全になるという問題や、製造コストが高くなるという問
題があった。In the above-mentioned conventional method for manufacturing a lithium battery, when the number of stacked pole groups increases,
There are problems that the spot welding operation is complicated and the spot welding becomes incomplete, and that the manufacturing cost is increased.
【０００５】また、リチウム電池に用いる電解液は、引
火性、発火性が強いため、スポット溶接時のスパークに
よって発火するという危険性を有していた。[0005] Further, since the electrolyte used for the lithium battery has a high flammability and ignitability, there is a risk that it may be ignited by a spark during spot welding.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するた
め、本発明は、正極板、負極板およびセパレータからな
る極群を複数個積層して電槽内に収納するともに、前記
正極板および負極板からリード線を引き出してなる電槽
体と、正極端子リングおよび負極端子リングが気密的に
取り付けられてなる蓋体とを準備し、前記リード線を、
その極性に対応する各端子リングに挿通して溶接すると
ともに、電槽体を蓋体によって密封することを特徴とす
るものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a method of stacking a plurality of electrode groups each including a positive electrode plate, a negative electrode plate and a separator, accommodating them in a battery case, A battery case body obtained by pulling out a lead wire from a plate, and a lid body in which a positive electrode terminal ring and a negative electrode terminal ring are hermetically attached are prepared, and the lead wire is prepared.
It is characterized by being inserted and welded to each terminal ring corresponding to the polarity and sealing the battery case with a lid.
【０００７】[0007]
【作 用】従って、本発明は、電槽内の極群の正極板お
よび負極板から引き出したリード線を、蓋体の正極端子
リングおよび負極端子リングに挿通して溶接しているの
で、確実に接続することができる。[Operation] Therefore, according to the present invention, the lead wires drawn from the positive electrode plate and the negative electrode plate of the electrode group in the battery case are inserted into the positive electrode terminal ring and the negative electrode terminal ring of the lid and welded. Can be connected to
【０００８】また、本発明は電槽体の上に蓋体を配して
からリード線を溶接することができるので、溶接時のス
パークによって電解液が発火するという問題を解消する
ことができる。Further, according to the present invention, since the lead wire can be welded after the lid is placed on the battery case, the problem that the electrolyte is ignited by the spark at the time of welding can be solved.
【０００９】[0009]
【実施例】図１は、本発明のリチウム電池の製造方法を
説明するための断面図である。FIG. 1 is a sectional view for explaining a method of manufacturing a lithium battery according to the present invention.
【００１０】図１において、電槽体Ａは、二酸化マンガ
ンを主体とし、シート状に成形した正極活物質１−１を
正極集電体１−２に圧着した正極板１と、金属リチウム
からなり、シート状に成形した負極活物質２−１を負極
集電体２−２に圧着した負極板２とをセパレータ３を介
在させて得た極群が複数個積層され、電槽４に収納して
なるもので、前記集電体１−２，２−２からはリード線
１−３，２−３が引き出されてなる。また、蓋体Ｂは、
蓋７に正極端子リング５、負極端子リング６が気密的に
取り付けられてなる。In FIG. 1, a battery case body A is composed of a positive electrode plate 1 composed mainly of manganese dioxide and formed by pressing a positive electrode active material 1-1 formed into a sheet into a positive electrode current collector 1-2, and metallic lithium. A plurality of electrode groups obtained by interposing a separator 3 with a negative electrode plate 2 obtained by pressing a negative electrode active material 2-1 formed into a sheet shape on a negative electrode current collector 2-2 are stacked, and stored in a battery case 4. The lead wires 1-3 and 2-3 are drawn out from the current collectors 1-2 and 2-2. The lid B is
A positive electrode terminal ring 5 and a negative electrode terminal ring 6 are hermetically attached to the lid 7.
【００１１】上記した電槽体Ａのリード線１−３を蓋体
Ｂの正極端子リング５に、電槽体Ａのリード線２−３を
蓋体Ｂの負極端子リング６に挿通して溶接するととも
に、前記電槽体Ａを蓋体Ｂによって密封して完成電池と
する。The lead 1-3 of the case A is inserted into the positive terminal ring 5 of the cover B, and the lead 2-3 of the case A is inserted into the negative terminal ring 6 of the cover B and welded. At the same time, the battery case A is sealed with a cover B to obtain a completed battery.
【００１２】上記実施例におけるリード線１−３，２−
３にステンレスからなる網線を使用すると、電槽体Ａの
上に蓋体Ｂを配した時にリード線１−３，２−３が容易
に折り曲がるので、作業性を向上させることができる。In the above embodiment, the lead wires 1-3 and 2-
When a mesh wire made of stainless steel is used for the lead 3, the lead wires 1-3 and 2-3 are easily bent when the cover B is disposed on the battery case A, so that the workability can be improved.
【００１３】上記した製造方法によって得られたリチウ
ム電池は、電解液の近くで溶接することがないので、電
池の製造時に電解液が発火するという問題を解消するこ
とができる。Since the lithium battery obtained by the above-described manufacturing method does not weld near the electrolytic solution, the problem that the electrolytic solution ignites during the production of the battery can be solved.
【００１４】また、上記した製造方法によって得られた
リチウム電池は、リード線１−３を正極端子リング５
に、リード線２−３を負極端子リング６に挿通して溶接
しているので、断線といった問題を解消することができ
る。In the lithium battery obtained by the above-described manufacturing method, the lead wire 1-3 is connected to the positive terminal ring 5
In addition, since the lead 2-3 is inserted into the negative electrode terminal ring 6 and welded, the problem of disconnection can be solved.
【００１５】[0015]
【発明の効果】上記したとおりであるから、本発明はリ
チウム電池の生産性を向上させることができる。As described above, the present invention can improve the productivity of a lithium battery.
【図１】本発明のリチウム電池の製造方法を説明するた
めの断面図である。FIG. 1 is a cross-sectional view illustrating a method for manufacturing a lithium battery according to the present invention.
１ 正極板 ２ 負極板 ３ セパレータ ４ 電槽 ５ 正極端子リング ６ 負極端子リング ７ 蓋 Reference Signs List 1 positive electrode plate 2 negative electrode plate 3 separator 4 battery case 5 positive electrode terminal ring 6 negative electrode terminal ring 7 lid
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 2/02 - 2/06 H01M 2/20 - 2/34 H01M 6/00 - 6/22 H01M 10/36 - 10/40 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) H01M 2/02-2/06 H01M 2/20-2/34 H01M 6/00-6/22 H01M 10 / 36-10/40
Claims (2)
る極群を複数個積層して電槽内に収納するとともに、前
記正極板および負極板からリード線を引き出してなる電
槽体と、正極端子リングおよび負極端子リングが気密的
に取り付けられてなる蓋体とを準備し、前記リード線
を、その極性に対応する各端子リングに挿通して溶接す
るとともに、電槽体を蓋体によって密封することを特徴
とするリチウム電池の製造方法。1. A battery case body comprising a plurality of electrode groups each comprising a positive electrode plate, a negative electrode plate and a separator, stacked and housed in a battery case, and a lead wire drawn out of the positive electrode plate and the negative electrode plate, and a positive electrode terminal. A ring and a lid having a negative electrode terminal ring attached thereto in an airtight manner are prepared, and the lead wire is inserted into and welded to each terminal ring corresponding to the polarity, and the battery case is sealed with the lid. A method for producing a lithium battery, comprising:
る請求項第１項記載のリチウム電池の製造方法。2. The method according to claim 1, wherein the lead comprises a mesh wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14848293A JP3264339B2 (en) | 1993-05-26 | 1993-05-26 | Method of manufacturing lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14848293A JP3264339B2 (en) | 1993-05-26 | 1993-05-26 | Method of manufacturing lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06333544A JPH06333544A (en) | 1994-12-02 |
| JP3264339B2 true JP3264339B2 (en) | 2002-03-11 |
Family
ID=15453749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14848293A Expired - Fee Related JP3264339B2 (en) | 1993-05-26 | 1993-05-26 | Method of manufacturing lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3264339B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19541255A1 (en) * | 1995-11-06 | 1997-05-07 | Varta Batterie | Galvanic cell |
| EP0948065B1 (en) * | 1998-03-30 | 2003-06-04 | Renata AG | Safety vent for accumulator or battery |
| US8027149B2 (en) | 2008-05-06 | 2011-09-27 | Greatbatch Ltd. | Electrolytic capacitors with multiple anodes and anode lead configurations thereof |
| US20120189889A1 (en) * | 2011-01-24 | 2012-07-26 | Dukjung Kim | Secondary battery |
| JP7616246B2 (en) * | 2021-02-02 | 2025-01-17 | 株式会社村田製作所 | Secondary battery and method for manufacturing the same |
-
1993
- 1993-05-26 JP JP14848293A patent/JP3264339B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06333544A (en) | 1994-12-02 |
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