JP5097184B2 - 非水電解質二次電池およびその製造方法 - Google Patents
非水電解質二次電池およびその製造方法 Download PDFInfo
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- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
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- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910012815 LiCoNiO Inorganic materials 0.000 description 1
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- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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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
-
- 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
Description
2 封口板
3 ガスケット
4 正極
4A 正極集電体
4B 正極合剤層
4a 正極リード
5 負極
5A 負極集電体
5B 負極合剤層
5a 負極リード
6 セパレータ
8 電極群
Claims (7)
- 正極集電体上に正極活物質が形成された正極、及び負極集電体上に負極活物質が形成された負極が、多孔質絶縁層を介して捲回又は積層された電極群を備えた非水電解質二次電池であって、
前記正極の引っ張り伸び率は、3.0%以上であり、かつ、前記負極及び前記多孔質絶縁層は、3.0%以上の引っ張り伸び率を有し、
前記正極は、前記正極活物質及び結着剤を含む正極合剤スラリーが塗布・乾燥された前記正極集電体を圧延した後、該正極集電体の軟化温度よりも高く、前記結着剤の分解温度よりも低い温度で熱処理されたものであり、
前記正極集電体は、鉄を含有するアルミニウムからなり、
前記多孔質絶縁層は、前記正極に対して摩擦力の大きなアラミド樹脂を含む材料からなる、非水電解質二次電池。 - 前記多孔質絶縁層は、20質量%以上のアラミド樹脂を含む材料からなる、請求項1に記載の非水電解質二次電池。
- 前記多孔質絶縁層は、45質量%以下のアラミド樹脂を含む材料からなる、請求項2に記載の非水電解質二次電池。
- 前記アラミド樹脂は、ポリ(パラフェニレンテレフタルアミド)、ポリ(パラベンズアミド)、ポリ(4,4’−ベンズアニリドテレフタルアミド)、ポリ(パラフェニレン−
2,6−ナフタレンジカルボン酸アミド)、ポリ(2−クロロパラフェニレンテレフタル
アミド)ポリフェニレンテレフタルアミド/2、及び6−ジクロロパラフェニレンテレフタルアミドからなる群より選択される少なくとも一種である、請求項1または2に記載の非水電解質二次電池。 - 前記多孔質絶縁層は、前記アラミド樹脂を含む材料からなる第1の多孔質絶縁層と、高温時に無孔性の層となるシャットダウン機能を有する第2の多孔質絶縁層と、で構成されている、請求項1に記載の非水電解質二次電池。
- 前記第1の多孔質絶縁層は、前記正極に接して、該正極と前記負極との間に配設されている、請求項5に記載の非水電解質二次電池。
- 請求項1に記載の非水電解質二次電池の製造方法であって、
前記負極及び前記多孔質絶縁層は、3.0%以上の引っ張り伸び率を有し、
前記多孔質絶縁層は、前記正極に対して摩擦力の大きなアラミド樹脂を含む材料からなり、
前記正極を作製する工程は、
正極活物質及び結着剤を含む正極合剤スラリーを、鉄を含有するアルミニウムからなる正極集電体の表面上に塗布した後に乾燥させる工程(a)と、
前記集電体表面上に前記正極合剤スラリーが塗布乾燥された正極集電体を圧延する工程(b)と、
前記工程(b)の後、圧延された正極集電体を、該正極集電体の軟化温度より高く、前記結着剤の分解温度よりも低い温度で熱処理する工程(c)とを有し、
前記工程(c)後の前記正極の引っ張り伸び率は、3.0%以上に制御される、非水電解質二次電池の製造方法。
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Families Citing this family (2)
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JP6413351B2 (ja) * | 2013-06-19 | 2018-10-31 | 株式会社Gsユアサ | 蓄電素子 |
JP7252014B2 (ja) | 2019-03-08 | 2023-04-04 | 株式会社エンビジョンAescジャパン | 電池 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03214562A (ja) * | 1990-01-18 | 1991-09-19 | Japan Storage Battery Co Ltd | 非水電解液二次電池用の正極の製造方法 |
JPH09129241A (ja) * | 1995-10-31 | 1997-05-16 | Matsushita Electric Ind Co Ltd | 非水電解液二次電池 |
JP4441933B2 (ja) * | 1997-02-18 | 2010-03-31 | 住友化学株式会社 | リチウム二次電池用正極およびリチウム二次電池 |
JP3175730B2 (ja) * | 1998-04-27 | 2001-06-11 | 住友化学工業株式会社 | 非水電解質電池セパレーターとリチウム二次電池 |
JP2000100408A (ja) * | 1998-09-21 | 2000-04-07 | Sumitomo Chem Co Ltd | 非水電解液二次電池 |
JP3916116B2 (ja) * | 1999-05-12 | 2007-05-16 | 日立マクセル株式会社 | 非水二次電池 |
EP1643583A4 (en) * | 2003-07-29 | 2010-01-20 | Panasonic Corp | LITHIUM ION SECONDARY BATTERY |
JP4882220B2 (ja) * | 2004-11-08 | 2012-02-22 | ソニー株式会社 | 二次電池 |
JP4560079B2 (ja) * | 2007-08-09 | 2010-10-13 | パナソニック株式会社 | 非水電解質二次電池用正極の製造方法 |
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