NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Title:

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Document Type and Number:

Japanese Patent JP2016149194

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To suppress resistance increase in a high-rate cycle.SOLUTION: A nonaqueous electrolyte secondary battery comprises an electrode body having an opening into/from which an electrolyte can flow. The electrode body includes a positive electrode mixture layer 12. The positive electrode mixture layer 12 has a side face 12s which faces the opening of the electrode body. The positive electrode mixture layer includes: a plurality of composite particles 4; and a filler arranged between the composite particles 4. The composite particles 4 each contain a positive electrode active material, a conductive material, and a binder. The filler is arranged so as to form a passage communicating with the inside of the positive electrode mixture layer from the side face 12s of the positive electrode mixture layer 12.SELECTED DRAWING: Figure 3

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Inventors:

UMEYAMA HIROYA
TSUTSUMI SHUJI
HASHIMOTO TATSUYA
OHARA KEISUKE

Application Number:

JP2015024042A

Publication Date:

August 18, 2016

Filing Date:

February 10, 2015

Export Citation:

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Assignee:

TOYOTA MOTOR CORP

International Classes:

H01M4/13; H01M4/36; H01M4/62; H01M10/0566; H01M10/058

Attorney, Agent or Firm:

Fukami patent office

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