Title:
リチウムイオン二次電池
Document Type and Number:
Japanese Patent JP6726004
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lithium ion secondary battery having less capacity reduction even when charging and discharging are repeated.SOLUTION: A lithium ion secondary battery comprises a battery main portion including a power generating element formed by laminating electrodes via a separator interposed therebetween, each electrode having a current collector and an active material layer disposed on the current collector, and a sealing portion formed of a sealing material for sealing at least a part of an outer peripheral portion of the power generating element. The difference |α1-α2| between the linear thermal expansion coefficient α1 of the sealing material and the linear thermal expansion coefficient α2 of the current collector, the maximum length L (mm) of the electrode and the inter-electrode distance D (mm) satisfy the following formula.SELECTED DRAWING: None
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Inventors:
Yuji Muroya
Iwataro Kano
Hiroaki Kaneda
Takeshi Yamada
Yui Gen
Masashi Suzuki
Iwataro Kano
Hiroaki Kaneda
Takeshi Yamada
Yui Gen
Masashi Suzuki
Application Number:
JP2016051542A
Publication Date:
July 22, 2020
Filing Date:
March 15, 2016
Export Citation:
Assignee:
Nissan Motor Co., Ltd
NOK CORPORATION
NOK CORPORATION
International Classes:
H01M10/0585; H01M2/08; H01M4/64; H01M10/052
Domestic Patent References:
| JP2007095653A | ||||
| JP2010287549A | ||||
| JP2009211951A | ||||
| JP2010205633A | ||||
| JP2011204360A | ||||
| JP2008226465A |
Attorney, Agent or Firm:
Hatta International Patent Corporation