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Title:
METHOD FOR MANUFACTURING ELECTRODE FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2010205517
Kind Code:
A
Abstract:

To provide a method for easily manufacturing an electrode 10 for a lithium secondary battery in which a hole 5 is formed on the surface of an active material layer 4, and to provide an electrode 10 for a lithium secondary battery in which the mechanical strength in the vicinity of the hole 5 is high and having high load characteristics.

The method for manufacturing the electrode 10 for the lithium secondary battery in which an active material layer 4 containing active material particles capable of absorbing and releasing lithium is formed on the surface of a current collector 1 includes the steps of: preparing slurry containing the active material particles, a binder for binding between the active material particles and between the active material particles and the current collector, resin partially compatible in the binder, and a solvent for dissolving the binder and the resin; forming a slurry coating film by applying the slurry on the current collector; and forming the active material layer on the current collector by vaporizing the solvent in the slurry coating film, drying the slurry coating film, and forming holes 5 on the surface of the active material layer 4 by aggregating a resin phase 3 containing resin in the slurry coating film, vaporizing the solvent contained in the aggregated resin phase 3, and decreasing the volume of the resin phase 3.


Inventors:
TAMURA NOBUYUKI
FUNABASHI ATSUHIRO
Application Number:
JP2009048761A
Publication Date:
September 16, 2010
Filing Date:
March 03, 2009
Export Citation:
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Assignee:
SANYO ELECTRIC CO
International Classes:
H01M4/139; H01M4/13; H01M4/62; H01M10/052; H01M10/058
Attorney, Agent or Firm:
Table of contents Makoto