US 2002/0159941 A1Published application

Silicon oxide powder and making method

AssigneeShin-Etsu Chemical Co., Ltd.

InventorsHirofumi Fukuoka, Satoru Miyawaki, Kenji Ooka, Susumu Ueno, Mikio Aramata, Takeshi Fukuda

Life of this patent

Estimating the term…

Abstract

A silicon oxide powder represented by the formula: SiOx wherein 1.05≦x≦1.5 and having a BET specific surface area of 5-300 m2/g is useful as a negative electrode material to construct a lithium ion secondary cell having a high capacity and improved cycle performance.

Claims3

Dependent claims

A silicon oxide powder represented by the formula:

SiOx wherein x is from 1.05 to 1.5 and having a BET specific surface area of 5 to 300 m2/g.

Dependencies are inferred from the claim text.

Facts

Application: 10/082,315Filed 26 Feb 2002
Priority: JP 2001-05390328 Feb 2001
Published: 31 Oct 2002
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01M 4/485
Of inorganic oxides or hydroxides: of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
C01B 33/113
Silicon; Compounds thereof: silicon oxides; Hydrates thereof
H01M 10/0525
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/0471
Processes of manufacture in general: involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal…

Family

US 6,759,160 B2Related patent
US 2002/0159941 A1This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

patentgrep

Loading patent…

patentgrepSearch patents

Back to results