The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2015
Filed:
Dec. 25, 2009
Takuya Toyokawa, Osaka, JP;
Takuya Toyokawa, Osaka, JP;
Sekisui Chemical Co., Ltd., Osaka, JP;
Abstract
Provided is a method of producing carbon particles for an electrode, each containing particles of a metal capable of forming an alloy with lithium, being formed by an aggregation of numerous fine particles composed of carbon, and having a hollow open-cell structure in which cells among the fine particles form a plurality of interconnected pores. The method includes mixing together a monomer having a low compatibility with a polymer to be formed, an organic solvent having a low compatibility with the polymer to be formed, and particles of a metal capable of forming an alloy with lithium, to prepare a monomer-containing mixture; dispersing the monomer-containing mixture in an aqueous phase to prepare a suspension containing, dispersed therein, oil droplets of the monomer-containing mixture; polymerizing the oil droplets in the suspension to prepare resin particles; and curing the resin particles. The carbon particles find use for negative-electrode in lithium-ion secondary batteries.