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:
Oct. 27, 2009
Filed:
Oct. 10, 2008
Applicants:
Mao-huang Liu, Taipei, TW;
Jin-ming Chen, Taoyuan, TW;
Tzu-hwa Cheng, Kaohsiung, TW;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 (2006.01); H01M 4/32 (2006.01); H01M 4/50 (2006.01); H01M 4/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cathode material particle comprising a plurality of cathode material cores and each cathode material core having plurality of grains and each grain being uniformly covered with a nano-metal oxide layer, wherein a thickness of the nano-metal oxide layer is 1 nm to 100 nm. The cathode material has excellent safety (good thermal stability), high-capacity, good cycleability and high-rate charging or discharging capability.