SULFUR COMPLEX WITH COATING LAYER FORMED ON SURFACE OF SULFUR BASE

Title:

SULFUR COMPLEX WITH COATING LAYER FORMED ON SURFACE OF SULFUR BASE

Document Type and Number:

Japanese Patent JP2015043300

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a sulfur material which is suitable for use as a positive electrode material, and high in conductivity and reactivity, and which makes possible to prevent the elution of a sulfur compound produced at charge and discharge into an electrolytic solution and to increase a sulfur content in a positive electrode, and to provide a positive electrode and a secondary battery which are arranged by use of such a sulfur material, enable the achievement of a high capacity, suffer a less reduction in capacity owing to charge and discharge, and can operate at normal temperatures with stability over a long period of time.SOLUTION: A sulfur complex comprises: a sulfur base; a coating layer of conductive polymer formed on a surface of the sulfur base; and a coating layer of ionic polymer formed on the coating layer of the conductive polymer. A positive electrode comprises: a positive electrode active material layer including the sulfur complex; and a current collector. A secondary battery comprises: the positive electrode; an electrolyte; and a negative electrode.

More Like This:

JP5812482	Manufacturing method and electrical equipment for sodium secondary batteries and negative electrodes for sodium secondary batteries
JP2021190173	SULFUR-BASED ACTIVE MATERIAL, ELECTRODE, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND MANUFACTURING METHOD
JP2023512358	Negative electrode piece, electrochemical device and electronic device including the negative electrode piece

Inventors:

TSUTSUMI HIROMORI
KOBASHI AI

Application Number:

JP2013174918A

Publication Date:

March 05, 2015

Filing Date:

August 26, 2013

Export Citation:

Click for automatic bibliography generation Help

Assignee:

UNIV YAMAGUCHI

International Classes:

H01M4/38; H01M4/36

Domestic Patent References:

JP2002329495A	2002-11-15
JP2009070605A	2009-04-02
JP2004171907A	2004-06-17

Attorney, Agent or Firm:

Masaki Hirota
Seiji Ozawa
Yusaku Tokai
Kazuhiro Matsuda
Makoto Horiuchi
Yamauchi Masako
Shohei Fujimoto
Shuichi Sonomoto

Previous Patent: JP2015043299

Next Patent: ALUMINUM PASTE, AND SOLAR CELL ELEMENT AND PRODUCTION METHOD OF THE SOLAR CELL ELEMENT