The manufacturing method of a composite material, and a composite material

Title:

The manufacturing method of a composite material, and a composite material

Document Type and Number:

Japanese Patent JP5957353

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a method for producing a composite material capable of more suppressing the deterioration of a negative electrode due to charge-discharge cycle, in the case when the composite material is used as a negative electrode material of a lithium ion secondary battery.SOLUTION: The method for producing a composite material having graphite particles and silicon particles bonded to the surface of the graphite particles includes (a) a step for partially oxidizing the graphite particles, (b) a step for surface-modifying the silicon particles having a primary particle diameter smaller than that of the graphite particles, and (c) a step for bonding the partially oxidized graphite particles and the surface-modified silicon particles.

Inventors:

Tadatoshi Kurozumi
Yoshiaki Matsuo
Yoshiaki Ikenoue

Application Number:

JP2012219767A

Publication Date:

July 27, 2016

Filing Date:

October 01, 2012

Export Citation:

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