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. 17, 2006
Filed:
Jun. 21, 2000
Takuya Nakashima, Osaka, JP;
Shinji Arimoto, Osaka, JP;
Masatoshi Nagayama, Katano, JP;
Yoshiaki Nitta, Hirakata, JP;
Takuya Nakashima, Osaka, JP;
Shinji Arimoto, Osaka, JP;
Masatoshi Nagayama, Katano, JP;
Yoshiaki Nitta, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A non-aqueous electrolyte secondary battery provided with a positive electrode having a lithium-manganese composite oxide as a positive electrode material, a negative electrode comprising a material capable of absorbing and releasing lithium and a non-aqueous electrolyte can be inhibited from deterioration of the negative electrode and can maintain excellent battery performances even after stored in a high-temperature environment or subjected to charging and discharging cycles at high temperatures by containing at least one of sodium (Na), potassium (K), calcium (Ca) and strontium (Sr).