The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 1996
Filed:
Apr. 25, 1995
Alfred M Wilson, Burnaby, CA;
Jeffery R Dahn, Surrey, CA;
Moli Energy (1990) Limited, , CA;
Abstract
Carbonaceous insertion compounds and methods for preparation are described wherein the compounds comprise a pre-graphitic carbonaceous host and atoms of an element capable of alloying with alkali metal atoms, the alloying atoms being incorporated predominantly as monodispersed atoms in the host. A carbonaceous insertion compound with large reversible capacity for lithium can be prepared if the alloying atoms incorporated are Si. Such insertion compounds can be prepared by simple pyrolysis of suitable polymers containing silicon and carbon at an appropriate temperature. These insertion compounds may be suitable for use as high capacity anodes in lithium ion batteries.