JP2017147223A - リチウムイオン電池の製造方法及びリチウムイオン電池 - Google Patents
リチウムイオン電池の製造方法及びリチウムイオン電池 Download PDFInfo
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- JP2017147223A JP2017147223A JP2017021120A JP2017021120A JP2017147223A JP 2017147223 A JP2017147223 A JP 2017147223A JP 2017021120 A JP2017021120 A JP 2017021120A JP 2017021120 A JP2017021120 A JP 2017021120A JP 2017147223 A JP2017147223 A JP 2017147223A
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- 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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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
Description
なお、正極電極組成物及び負極電極組成物は、それぞれ正極活物質粒子及び負極活物質粒子を含む組成物であり、それぞれ、更に電解液を含む組成物であることが好ましい。
被覆剤に含まれる被覆用樹脂としては、電解液を吸収して膨潤する樹脂を用いることができ、具体的な例としては、国際公開第2015/005117号に記載されたビニル樹脂、ウレタン樹脂、ポリエステル樹脂、ポリアミド樹脂、エポキシ樹脂、ポリイミド樹脂、シリコーン樹脂、フェノール樹脂、メラミン樹脂、ユリア樹脂、アニリン樹脂、アイオノマー樹脂及びポリカーボネート等が挙げられる。これらの中ではビニル樹脂、ウレタン樹脂、ポリエステル樹脂及びポリアミド樹脂が好ましく、なかでもビニル樹脂が好ましい。
CH2=C(R1)COOR2 (1)
[式(1)中、R1は水素原子又はメチル基であり、R2は炭素数4〜36の分岐アルキル基である。]
非水溶媒は1種を単独で用いてもよいし、2種以上を併用してもよい。
1 発電部
2 正極
3 負極
4 セパレータ
5 正極活物質層
6 負極活物質層
7 正極集電体
8 負極集電体
9 シール部材
20 電池外殻容器
20a、20f、20j 第1の分割容器
20b、20g、20k 第2の分割容器
Claims (6)
- 樹脂成形体からなる外殻容器を有するリチウムイオン電池の製造方法であって、
導電性高分子組成物からなる第1極集電体及び第2極集電体のそれぞれを前記外殻容器の内方に成形型を用いて成型する集電体成型工程を備えるリチウムイオン電池の製造方法。 - 請求項1に記載のリチウムイオン電池の製造方法において、
前記第1極集電体及び前記第2極集電体が成型された前記容器内に、第1極活物質粒子と電解液とを含む第1極電極組成物及び第2極活物質粒子と電解液とを含む第2極電極組成物を充填する電極組成物充填工程を備えるリチウムイオン電池の製造方法。 - 請求項1に記載のリチウムイオン電池の製造方法において、
前記外殻容器は、前記外殻容器を分割した一対の第1の分割容器と第2の分割容器とからなり、
前記集電体成型工程は、前記第1の分割容器の内方に前記第1極集電体を、前記第2の分割容器の内方に前記第2極集電体をそれぞれ成型する工程を備え、
更に、前記第1極集電体が成型された前記第1の分割容器に第1極活物質粒子と電解液とを含む第1極電極組成物を充填し、前記第2極集電体が成型された前記第2の分割容器に第2極活物質粒子と電解液とを含む第2極電極組成物をそれぞれ充填する電極組成物充填工程と、
前記第1極電極組成物が充填された前記第1の分割容器と前記第2極電極組成物が充填された前記第2の分割容器とをセパレータを介して対向させて一体化する一体化工程とを備えるリチウムイオン電池の製造方法。 - 請求項1に記載のリチウムイオン電池の製造方法において、
前記外殻容器は、前記外殻容器を分割した一対の第1の分割容器と第2の分割容器とからなり、
前記集電体成型工程は、前記第1の分割容器の内方に前記第1極集電体を、前記第2の分割容器の内方に前記第2極集電体をそれぞれ成型する工程を備え、
前記第1極集電体が成型された前記第1の分割容器内に、第1極活物質層、セパレータ、及び第2極活物質層を順に積層する電極組成物積層工程と、
前記第1の分割容器に収容した前記第2極活物質層と第2の分割容器の内方に成型した前記第2極集電体とが対向する向きに前記第1の分割容器と第2の分割容器とを一体化する一体化工程とを備えるリチウムイオン電池の製造方法。 - 第1極集電体、第1極活物質層、セパレータ、第2極活物質層及び第2極集電体を順に積層してなる発電部と前記発電部を収容する電池外殻容器とを有してなるリチウムイオン電池であって、
前記電池外殻容器が樹脂成形体であり、
前記第1極集電体及び前記第2極集電体が導電性高分子組成物からなる集電体であり、
前記外殻容器に前記第1極集電体及び前記第2極集電体が一体に成型されたリチウムイオン電池。 - 請求項5に記載のリチウムイオン電池において、
前記第1極活物質層が前記第1極活物質粒子の表面の少なくとも一部が導電助剤と被覆用樹脂とを含んでなる被覆剤で被覆されている被覆第1極活物質粒子を含み、
前記第2極活物質層が前記第2極活物質粒子の表面の少なくとも一部が被覆用樹脂を含んでなる被覆剤で被覆されている被覆第2極活物質粒子を含むリチウムイオン電池。
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JP7107088B2 (ja) | 2018-08-17 | 2022-07-27 | 日産自動車株式会社 | 電池パック |
WO2021025072A1 (ja) * | 2019-08-06 | 2021-02-11 | Apb株式会社 | リチウムイオン電池の製造方法 |
JP2021044152A (ja) * | 2019-09-11 | 2021-03-18 | 三洋化成工業株式会社 | リチウムイオン電池の製造方法 |
JP7510749B2 (ja) | 2019-09-11 | 2024-07-04 | 三洋化成工業株式会社 | リチウムイオン電池の製造方法 |
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