WO2016071798A1 - 二次電池、およびその作製方法 - Google Patents
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Abstract
Description
本実施の形態では、図1乃至図4を用いて、本発明の一態様の二次電池の一例について説明する。
本実施の形態では、図5乃至図9を用いて、本発明の一態様の二次電池の作製方法の一例について説明する。
上記実施の形態で説明した二次電池と組み合わせて用いることができる電池制御ユニット(Battery Management Unit:BMU)、及び該電池制御ユニットを構成する回路に適したトランジスタについて、図11乃至図17を参照して説明する。本実施の形態では、特に直列に接続された電池を有する蓄電装置、例えば図4(A)に示す二次電池200が直列に接続された蓄電装置の電池制御ユニットについて説明する。
本実施の形態では、実施の形態1で説明した二次電池を搭載することのできる電子機器の一例を示す。
本実施の形態では、車両に実施の形態1で説明した二次電池を搭載する例を示す。
Claims (7)
- 正極集電体と、前記正極集電体上の正極活物質層と、負極集電体と、前記負極集電体上の負極活物質層と、電解液と、外装体と、を有する二次電池であって、
前記外装体は、前記正極集電体、前記正極活物質層、前記負極集電体、前記負極活物質層および前記電解液を覆い、
前記電解液は、スペーサと、ポリマーと、電解質と、溶媒と、を有し、
前記スペーサは、前記正極活物質層と、前記負極活物質層の間の距離を一定以上に保つ機能を有し、
前記ポリマーは、前記電解液をゲル化する機能を有する二次電池。 - 請求項1において、
前記スペーサは、酸化アルミニウムを有する粒子であることを特徴とする二次電池。 - 請求項1または請求項2において、
前記電解液が有する前記ポリマーは、PVDFを有し、
前記電解質は、Li(SO2F)2Nを有し、
前記溶媒は、エチレンカーボネートとプロピレンカーボネートを有することを特徴とする二次電池。 - 第1のセルと、第2のセルと、外装体と、を有する二次電池であって、
前記外装体は、前記第1のセルと、前記第2のセルを覆い、
前記第1のセルと、前記第2のセルは直列に電気的に接続され、
前記第1のセルは、第1の正極集電体と、前記第1の正極集電体上の第1の正極活物質層と、第1の負極集電体と、前記第1の負極集電体上の第1の負極活物質層と、第1の電解液と、を有し、
前記第1の電解液は、第1のスペーサと、第1のポリマーと、第1の電解質と、第1の溶媒と、を有し、
前記第1のスペーサは、前記第1の正極活物質層と、前記第1の負極活物質層の間の距離を一定以上に保つ機能を有し、
前記第1のポリマーは、前記第1の電解液をゲル化する機能を有し、
前記第2のセルは、第2の正極集電体と、前記第2の正極集電体上に形成された第2の正極活物質層と、第2の負極集電体と、前記第2の負極集電体上に形成された第2の負極活物質層と、第2の電解液と、を有し、
前記第2の電解液は、第2のスペーサと、第2のポリマーと、第2の電解質と、第2の溶媒と、を有し、
前記第2のスペーサは、前記第2の正極活物質層と、前記第2の負極活物質層の間の距離を一定以上に保つ機能を有し、
前記第2のポリマーは、前記第2の電解液をゲル化する機能を有する二次電池。 - 正極集電体上に、第1の正極活物質層および第2の正極活物質層を形成する工程と、
負極集電体上に、第1の負極活物質層および第2の負極活物質層を形成する工程と、
前記正極集電体上に、スペーサを有する電解液を、前記第1の正極活物質層および前記第2の正極活物質層と、前記電解液が接するように配置する工程と、
前記電解液上に、前記負極集電体を、前記電解液と前記第1の負極活物質層および前記第2の負極活物質層が接し、かつ前記第1の正極活物質層と前記第1の負極活物質層が重畳し、前記第2の正極活物質層と前記第2の負極活物質層が重畳するように配置する工程と、
前記正極集電体、前記第1の正極活物質層、前記第2の正極活物質層、前記電解液、前記第1の負極活物質層、前記第2の負極活物質層および前記負極集電体を、加熱および加圧する工程と、
前記正極集電体と前記負極集電体の間の領域に、加熱して流動性が増した絶縁体を注入する工程と、
前記正極集電体、前記負極集電体、前記電解液および前記絶縁体を、前記第1の正極活物質層と前記第2の正極活物質層の間で切断する工程と、
前記切断工程によって作製された、前記第1の正極活物質層および前記第1の負極活物質層を有する第1のセルと、前記第2の正極活物質層および前記第2の負極活物質層を有する第2のセルと、を直列に電気的に接続する工程と、
前記第1のセルおよび前記第2のセルを、外装体で覆う工程と、を有する二次電池の作製方法。 - 請求項5において、
前記電解液は、ポリマーと、電解質と、溶媒と、を有し、
前記正極集電体上に、前記電解液を、前記第1の正極活物質層および前記第2の正極活物質層と、前記電解液が接するように配置する前記工程において、
前記電解液は、シート状のゲルであることを特徴とする二次電池の作製方法。 - 請求項5または請求項6において、
前記スペーサは、酸化アルミニウムを有する粒子であることを特徴とする二次電池の作製方法。
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JP2021193685A (ja) * | 2017-06-27 | 2021-12-23 | 株式会社日本触媒 | 電解質組成物、電解質膜、電極、電池及び電解質組成物の評価方法 |
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JP6883396B2 (ja) * | 2016-08-25 | 2021-06-09 | 矢崎総業株式会社 | 急速充電装置 |
US11804622B2 (en) | 2018-06-22 | 2023-10-31 | Semiconductor Energy Laboratory Co., Ltd. | Abnormality detection method of power storage device and management device of power storage device |
JP7200521B2 (ja) * | 2018-07-11 | 2023-01-10 | 京セラドキュメントソリューションズ株式会社 | 電装装置及び表示装置 |
EP3859828B1 (en) * | 2018-09-26 | 2023-04-05 | Panasonic Intellectual Property Management Co., Ltd. | Nonaqueous electrolyte secondary battery negative electrode and nonaqueous electrolyte secondary battery |
US11545700B2 (en) * | 2019-01-25 | 2023-01-03 | Ricoh Company, Ltd. | Power storage system with integrally formed voltage detecting field effect transistor and manufacturing method thereof |
CN112234220A (zh) * | 2019-07-15 | 2021-01-15 | 张宇彻 | 热电电池 |
DE102020129496A1 (de) * | 2020-11-09 | 2022-05-12 | Volkswagen Aktiengesellschaft | Batteriezelle |
WO2024036852A1 (en) * | 2022-08-19 | 2024-02-22 | Techtronic Cordless Gp | Lithium-ion battery with electrode ceramic coating |
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JP2021193685A (ja) * | 2017-06-27 | 2021-12-23 | 株式会社日本触媒 | 電解質組成物、電解質膜、電極、電池及び電解質組成物の評価方法 |
US11374258B2 (en) | 2017-06-27 | 2022-06-28 | Nippon Shokubai Co., Ltd. | Electrolyte composition, electrolyte membrane, electrode, cell and method for evaluating electrolyte composition |
JP7240465B2 (ja) | 2017-06-27 | 2023-03-15 | 株式会社日本触媒 | 電解質組成物、電解質膜、電極、電池及び電解質組成物の評価方法 |
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Publication number | Publication date |
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JP2020035758A (ja) | 2020-03-05 |
JP6619747B2 (ja) | 2019-12-11 |
JPWO2016071798A1 (ja) | 2017-09-07 |
JP2021073643A (ja) | 2021-05-13 |
JP6824364B2 (ja) | 2021-02-03 |
JP7274029B2 (ja) | 2023-05-15 |
JP7133046B2 (ja) | 2022-09-07 |
US20170317374A1 (en) | 2017-11-02 |
US10581107B2 (en) | 2020-03-03 |
JP2022166315A (ja) | 2022-11-01 |
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