Title:
リチウムイオン電池用電極材料の形成
Document Type and Number:
Japanese Patent JP4188445
Kind Code:
B2
Abstract:
This invention pertains to a method for producing electrode materials for lithium ion batteries comprising pyrolyzing a composition comprising a silicon-containing preceramic polymer to produce a ceramic composition comprising a siliconoxycarbide (SiOC); treating the ceramic composition with a strong acid or a strong base; and thereafter introducing lithium ions into the ceramic material to form an electrode material. Treatment of the ceramic composition reduces the levels of Si and O and increases the surface area and open porosity of the ceramic thus making the ceramic more useful as an electrode material.
Inventors:
Jeffrey Raymond Dahn
Alf M. Wilson
Wavein xin
Greg Alan Zank
Katsuya Eguchi
Alf M. Wilson
Wavein xin
Greg Alan Zank
Katsuya Eguchi
Application Number:
JP7719998A
Publication Date:
November 26, 2008
Filing Date:
March 25, 1998
Export Citation:
Assignee:
DOW CORNING CORPORATION
International Classes:
H01M4/1397; H01M4/58; H01M10/0525; H01M10/36
Domestic Patent References:
| JP840716A | ||||
| JP1074506A | ||||
| JP6283157A |
Other References:
A.M.Wilson etc.,Polysiloxane Pyrolysis,Chem. Mater.,1997年,9,p.1601-1606
A.M.Wilson etc.,Pyrolysed pitch-polysilane blends for use as anode materials in lithium ion batteries II: the effect of oxygen,Solid State Ionics,1997年,p.259-266
A.M.Wilson etc.,Pyrolysed pitch-polysilane blends for use as anode materials in lithium ion batteries II: the effect of oxygen,Solid State Ionics,1997年,p.259-266
Attorney, Agent or Firm:
Takashi Ishida
Toshio Toda
Masaya Nishiyama
Toshio Toda
Masaya Nishiyama