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Patent Searching and Data


Title:
LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2018/025469
Kind Code:
A1
Abstract:
This lithium ion secondary battery is provided with a positive electrode, a negative electrode, a separator that is interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte that is soaked into the positive electrode, the negative electrode and the separator. The nonaqueous electrolyte contains a lithium salt and a nonaqueous solvent into which the lithium salt is dissolved. The concentration of the lithium salt in the nonaqueous electrolyte within the positive electrode is higher than the concentration of the lithium salt in the nonaqueous electrolyte within the negative electrode.

Inventors:
TANI Yuji
NISHINO Hajime
SUGAYA Yasuhiro
NISHITANI Satoshi
Application Number:
JP2017/018771
Publication Date:
February 08, 2018
Filing Date:
May 19, 2017
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
H01M10/0568; H01M4/13; H01M4/62; H01M10/052; H01M10/058
Domestic Patent References:
WO2011118144A12011-09-29
Foreign References:
JP2011192561A2011-09-29
JP2002298919A2002-10-11
JP2014207050A2014-10-30
JP2017062959A2017-03-30
Attorney, Agent or Firm:
KAMATA Kenji et al. (1-61, Shiromi 2-chome, Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
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