About 54 results
https://drivepatents.com/patents/978216 · 19 Feb 2014
A positive active material including a compound represented by Li 1+x M 1-k Me k O 2 . A surface part of a particle of the positive active material has a mole ratio [Me/M] (A) of element represented by Me to element represented by M in Li 1+x M 1-k Me k O ...
https://drivepatents.com/patents/978638 · 12 Feb 2014
The present invention relates to a positive electrode active material for improving output and to a lithium secondary battery comprising same. More particularly, the present invention relates to a high-capacity positive electrode active material and to a l...
https://drivepatents.com/patents/979171 · 29 Jan 2014
Provided is a secondary battery comprising a positive electrode active material represented by the following Chemical Formula 1, [Chemical Formula 1] Li {LiMnMM'}O where 0(1-a)/2, and 0
https://drivepatents.com/patents/982032 · 13 Nov 2013
Provided is a composite cathode active material including layered lithium manganese oxide and lithium-containing metal oxide. Also, the present invention provides a secondary battery, a battery module, and a battery pack which have improved power character...
https://drivepatents.com/patents/982241 · 6 Nov 2013
An object of the present invention is to provide a positive active material for a nonaqueous electrolyte secondary battery which has a large discharge capacity and is superior in charge-discharge cycle performance, initial efficiency and high rate discharg...
https://drivepatents.com/patents/983280 · 16 Oct 2013
The present invention relates to a cathode active material including a lithium manganese-based oxide. Particularly, the present invention relates to a cathode active material characterized in that the lithium manganese-based oxide has a layered crystalline...
https://drivepatents.com/patents/988109 · 31 Jul 2013
[Object] There is provided an active material for a lithium secondary battery, which has a high initial efficiency and a high discharge capacity, and particularly has a high discharge capacity at a low temperature (excellent low-temperature characteristic)...
https://drivepatents.com/patents/990451 · 22 May 2013
A cathode and a battery including a cathode active material including a layer-structured material having a composition of xLiMO-(1-x)LiMeO; and a metal oxide having a perovskite structure. The cathode active material may have improved structural stability ...
https://drivepatents.com/patents/985566 · 20 Mar 2013
To provide a lithium secondary battery which has high capacity while maintaining excellent cycle characteristic. The lithium secondary battery cathode of the present invention includes a cathode collector formed of a conductive substance, and a cathode act...
https://drivepatents.com/patents/993040 · 6 Feb 2013
The invention is to provide a positive-electrode active material for lithium secondary batteries which, when used as a positive-electrode material for lithium secondary batteries, is capable of attaining a cost reduction and a high capacity and is capable ...