THREE−DIMENSIONAL CELL, ITS ELECTRODE STRUTURE, AND METHOD FOR MANUFACTURING ELECTRODE MATERIAL OF THREE−DIMENSIONAL CELL

Title:

THREE−DIMENSIONAL CELL, ITS ELECTRODE STRUTURE, AND METHOD FOR MANUFACTURING ELECTRODE MATERIAL OF THREE−DIMENSIONAL CELL

Document Type and Number:

WIPO Patent Application WO/2003/028142

Kind Code:

A1

Abstract:

A three−dimensional cell in which a negative electrode cell and a positive electrode cell are disposed with a porous separator interposed between the cells, a negative electrode active material and an electrolytic solution are placed in the negative electrode cell, a positive electrode active material and an electrolytic solution are placed in the positive electrode cell, and current collectors are disposed in the cells, its electrode structure, and a method for manufacturing an electrode structure of a three−dimensional cell are disclosed. In the conventional process of manufacturing a three−dimensional cell, a separator, a current collector, and so forth have to be assembled in advance to complete a cell, and a powdery active material is placed in the cell. However, there has been the problem that the number of components is large, and therefore the assembling time is long and the assembling cost is high when the cell is assembled. According to the invention, a conductive filler and a resin are added to the powder to be used as the active material, the powder is cured, and this active material molded piece thus produced is integrated with at least one of the separator, partition, and current collector, thereby solving the above problem.

Inventors:

TSUTSUMI KAZUO (JP)
NISHIMURA KAZUYA (JP)
MITSUDA SUSUMU (JP)

Application Number:

PCT/JP2002/009409

Publication Date:

April 03, 2003

Filing Date:

September 13, 2002

Export Citation:

Click for automatic bibliography generation Help

Assignee:

KAWASAKI HEAVY IND LTD (JP)
OSAKA GAS CO LTD (JP)
TSUTSUMI KAZUO (JP)
NISHIMURA KAZUYA (JP)
MITSUDA SUSUMU (JP)

International Classes:

H01M4/32; H01M4/62; H01M10/28; H01M10/30; H01M50/443; H01M50/463; H01M50/528; H01M10/04; (IPC1-7): H01M10/28; H01M4/32; H01M4/24; H01M4/26

Domestic Patent References:

WO2000059062A1

2000-10-05

Foreign References:

JP2001236956A	2001-08-31
JP2001176553A	2001-06-29
JPH05182657A	1993-07-23
JPH0475256A	1992-03-10
JPH10340720A	1998-12-22
JPH07335208A	1995-12-22
JPS49129139A	1974-12-11
JPS50145836A	1975-11-22
JPH01241755A	1989-09-26
JPH0973897A	1997-03-18
JPH0963568A	1997-03-07
JPH1150169A	1999-02-23
EP0814530A1	1997-12-29

Other References: