JP2010205737A - 扁平形非水電解質二次電池 - Google Patents
扁平形非水電解質二次電池 Download PDFInfo
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- 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
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- 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
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Abstract
【解決手段】 負極端子を兼ねる金属製の負極ケースと、正極端子を兼ねる金属製の正極ケースが絶縁ガスケットを介して嵌合され、さらに前記正極ケースまたは負極ケースが加締め加工により加締められた封口構造を有し、その内部に少なくとも正極作用物質含有層、負極作用物質含有層、薄膜セパレータを合わせた電極群と、非水電解質を収納した扁平形非水電解質二次電池において、前記正極および/または負極ケースと前記薄膜セパレータとの間に、非金属のフィルム、織布、不織布または繊維で構成された断熱材を設けたことを特徴とする扁平形非水電解質二次電池により、前記課題を解決する。
【選択図】 図1
Description
図1は本発明の実施例1の扁平形非水電解質二次電池の断面図であり、図2は図1の部分拡大図である。図において、本実施例1の扁平形非水電解質二次電池の電池ケースは、ステンレス製の正極ケース8に、絶縁ガスケット6を一体化した負極ケース7が嵌合されており、この電池ケース内には正極作用物質含有層1aと負極作用物質含有層3aの間にポリエチレン微多孔膜からなるセパレータ5を介して渦巻状に捲回された発電要素が収納されている。1bは正極集電体、2は正極側の断熱材、3は負極板、3bは負極集電体、4は負極側の断熱材である。
厚さが0.05mmのガラステープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
正極及び負極の作用物質含有層の厚さを0.14mmとし、厚さ0.10mmのガラステープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
正極及び負極の作用物質含有層の厚さを0.13mmとし、厚さ0.15mmのガラステープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
正極及び負極の作用物質含有層の厚さを0.12mmとし、厚さ0.20mmのガラステープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
正極及び負極の作用物質含有層の厚さを0.10mmとし、厚さ0.30mmのガラステープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
PTFEフィルムを基材とし、その片面に粘着剤が塗布された厚さ0.03mmのPTFEテープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
厚さ0.05mmのPTFEテープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
正極及び負極の作用物質含有層の厚さを0.14mmとし、厚さ0.10mmのPTFEテープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
正極及び負極の作用物質含有層の厚さを0.13mmとし、厚さ0.15mmのPTFEテープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
正極及び負極の作用物質含有層の厚さを0.12mmとし、厚さ0.20mmのPTFEテープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
正極及び負極の作用物質含有層の厚さを0.10mmとし、厚さ0.30mmのPTFEテープを断熱材として正極板及び負極板に張り付けた以外は実施例1と同様に電池を作製した。
正極板及び負極板に断熱材を張り付けなかった以外は実施例1と同様に電池を作製した。
1a 正極作用物質含有層
1b 正極集電体
2 断熱材(正極側)
3 負極板
3a 負極作用物質含有層
3b 負極集電体
4 断熱材(負極側)
5 セパレータ
6 絶縁ガスケット
7 負極ケース
8 正極ケース
Claims (4)
- 負極端子を兼ねる金属製の負極ケースと、正極端子を兼ねる金属製の正極ケースが絶縁ガスケットを介して嵌合され、さらに前記正極ケースまたは負極ケースが加締め加工により加締められた封口構造を有し、その内部に少なくとも正極作用物質含有層、負極作用物質含有層、薄膜セパレータを合わせた電極群と、非水電解質を収納した扁平形非水電解質二次電池において、
前記正極および/または負極ケースと前記薄膜セパレータとの間に、非金属のフィルム、織布、不織布または繊維で構成された断熱材を設けたことを特徴とする扁平形非水電解質二次電池。 - 少なくとも正極、セパレータ、負極を含む電極群から扁平形電池の扁平面に水平な方向の一方の外部に導電性を有する正極構成材を露出させ、その正極構成材を直接あるいは電気的に正極ケースに接続し、かつ電極群の扁平形電池の扁平面に水平な方向のもう一方の外部に導電性を有する負極構成材を露出させ、その負極構成材を直接あるいは電気的に負極ケースに接続した構造を有し、かつ前記正極および/または前記負極の構成材露出部が扁平形電池の扁平面に水平な方向に平坦部を有するU字状を形成し、そのU字状内部に前記断熱材が保持されたことを特徴とする請求項1記載の扁平形非水電解質二次電池。
- 前記断熱材がガラス質からなり、その厚さが0.05mm以上0.20mm以下であることを特徴とする請求項1記載の扁平形非水電解質二次電池。
- 前記断熱材の構成材料が樹脂からなり、その厚さが0.05mm以上0.20mm以下であることを特徴とする請求項1記載の扁平形非水電解質二次電池。
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08321287A (ja) * | 1995-03-20 | 1996-12-03 | Matsushita Electric Ind Co Ltd | 有機電解液電池 |
JPH09270272A (ja) * | 1996-04-01 | 1997-10-14 | Japan Storage Battery Co Ltd | 非水電解質二次電池 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08321287A (ja) * | 1995-03-20 | 1996-12-03 | Matsushita Electric Ind Co Ltd | 有機電解液電池 |
JPH09270272A (ja) * | 1996-04-01 | 1997-10-14 | Japan Storage Battery Co Ltd | 非水電解質二次電池 |
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