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. 19, 2017
Filed:
Mar. 18, 2013
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Abstract
A non-aqueous electrolyte secondary cell has reduced degradation of the electrolytic solution or the anode active material and high cycle durability. The non-aqueous electrolyte secondary cell includes: a cathode capable of doping and de-doping lithium ions; an anode capable of occluding and releasing lithium ions, lithium or a lithium alloy; and an electrolytic solution containing an organic solvent, a lithium salt electrolyte and an additive. The cathode active material of the cathode contains a layered lithium-containing transition metal oxide of formula Li[NiCoMn[Li]]O, where a, b, c, and d satisfy 0<a<1.4, 0≦b<1.4, 0<c<1.4, 0<d≦0.5, a+b+c+d=1.5, and 1.0≦a+b+c<1.5. The anode active material contains a carbon-based material with the surface fully or partly covered with a coating derived from the additive.