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Title:
POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/153110
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide positive electrode active substance particles for a lithium ion secondary battery, such particles being capable of producing a lithium ion secondary battery having excellent high-speed discharge properties. The present invention is a granulated body of a positive electrode active substance for a lithium ion secondary battery, wherein the primary particle average diameter is 10 to 80 nm and the number of primary particles having a diameter of 100 nm or greater is no more than 5.0%.

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Inventors:
KAWAMURA HIROAKI (JP)
ONOZUKA TOMOYA (JP)
Application Number:
PCT/JP2020/048111
Publication Date:
August 05, 2021
Filing Date:
December 23, 2020
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
H01M4/36; H01M4/58
Domestic Patent References:
WO2009131095A12009-10-29
WO2014017617A12014-01-30
Foreign References:
JP2015056223A2015-03-23
JP2003536231A2003-12-02
JP2012195134A2012-10-11
US20110244329A12011-10-06
JP2014032803A2014-02-20
Other References:
See also references of EP 4099440A1
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