NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Title:

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2023/162689

Kind Code:

A1

Abstract:

A negative electrode active material for a non-aqueous electrolyte secondary battery according to one example of an embodiment comprises composite particles (30) that include a lithium aluminate phase (31) and a silicon phase (32) dispersed in the lithium aluminate phase (31). The composite particles (30) have an internal porosity of 25% or less before being charged and discharged for the first time.

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Inventors:

JIN TAKUYA
ASANO TAISUKE

Application Number:

PCT/JP2023/004222

Publication Date:

August 31, 2023

Filing Date:

February 08, 2023

Export Citation:

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Assignee:

PANASONIC IP MAN CO LTD (JP)

International Classes:

H01M4/38; H01M4/36

Domestic Patent References:

WO2017199606A1	2017-11-23
WO2016035290A1	2016-03-10

Foreign References:

JP2013197012A

2013-09-30

Attorney, Agent or Firm:

YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)

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