About 58 results
https://drivepatents.com/patents/973881 · 11 Jun 2014
A main object of the present invention is to provide a solid secondary battery having a high energy density and a long service life, which can suitably suppress an increase in the battery resistance when charging has been carried out to a high SOC. To atta...
https://drivepatents.com/patents/977071 · 26 Mar 2014
An object of the present invention is to reduce the time required for the calcination of a lithium metal salt complex to thereby provide a high-quality cathode active material for a lithium ion battery at low cost. The method for producing a cathode active...
https://drivepatents.com/patents/977918 · 5 Mar 2014
The present invention provides a method for producing a high quality positive electrode active material for lithium ion batteries at low cost and at excellent production efficiency. The method for producing a positive electrode active material for lithium ...
https://drivepatents.com/patents/978545 · 12 Feb 2014
Disclosed is a high energy density lithium secondary battery including: a cathode that includes, as cathode active materials, a first cathode active material represented by Formula 1 below and having a layered structure and a second cathode active material...
https://drivepatents.com/patents/979703 · 15 Jan 2014
The present invention is aimed at providing a nonaqueous electrolyte secondary battery capable of improving cycling characteristics by improving a positive electrode active material when particles with a structure in which primary particles are aggregated ...
https://drivepatents.com/patents/980404 · 25 Dec 2013
Provided is a positive active material for a lithium secondary battery or a lithium secondary battery using the positive active material, in which the positive active material includes a lithium transition metal composite oxide having an ±-NaFeO 2 -type c...
https://drivepatents.com/patents/989754 · 12 Jun 2013
A positive active material for a lithium secondary battery (30), a method of preparing the same, and a lithium secondary battery (30) including the positive active material. The positive active material includes a core part and a shell part that include a ...
https://drivepatents.com/patents/990603 · 22 May 2013
The invention is to provide a positive electrode for lithium secondary battery which is capable of attaining both increases in the capacity and output of lithium secondary batteries and a prolongation of the life thereof, and to further provide a lithium s...
https://drivepatents.com/patents/992500 · 6 Mar 2013
Disclosed is a cathode for secondary batteries comprising a compound having a transition metal layer containing lithium as at least one compound selected from the following formula 1: (1-x)Li(LiMMa)OA*xLiPO(1) wherein M is an element stable for a six-coord...
https://drivepatents.com/patents/994153 · 9 Jan 2013
The present invention provides a positive electrode active material for lithium ion battery which attains a lithium ion battery having high safety. The positive electrode active material for lithium ion battery which has a layer structure represented by th...