About 30 results
https://drivepatents.com/patents/972951 · 2 Jul 2014
To obtain a precursor for a positive electrode active material capable of improving cell characteristics of a nonaqueous electrolytic secondary cell. Upon producing a nickel composite hydroxide having a composition represented by NiCoMnM(OH)(where 0 ≤ x ...
https://drivepatents.com/patents/973763 · 11 Jun 2014
The present invention relates to a cathode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery including the same, and provides a cathode active material including Li 2 MnO 3 having a layered st...
https://drivepatents.com/patents/974368 · 28 May 2014
The present invention relates to a cathode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery including the same. Provided is a cathode active material composed of a lithium-excess lithium meta...
https://drivepatents.com/patents/975669 · 30 Apr 2014
A method of preparing an electrode active material for manufacturing a lithium secondary battery exhibiting stable charging/discharging efficiency and life-cycle characteristics even during high-speed charging/discharging cycles is provided. Also, a method...
https://drivepatents.com/patents/975778 · 23 Apr 2014
Provided is an anode active material including lithium metal oxide particles having an internal porosity ranging from 3% to 8% and an average particle diameter (D 50 ) ranging from 5 µm to 12 µm. According to the present invention, since the high-density...
https://drivepatents.com/patents/976659 · 9 Apr 2014
Provided is a positive electrode material for a lithium battery with an atomic ratio expressed by the formula (I) Li a (M x Mn 2-x )(O 4-y Z y ) for 0.8‰¤a‰¤1.2, 0‰¤x‰¤1 and 0‰¤y‰¤1 in which M is one or more of Li, Na, K, Ca, Mg, Al, Ti, ...
https://drivepatents.com/patents/976402 · 9 Apr 2014
The present invention aims at providing a transition metal composite hydroxide, the use of which as a precursor allows a lithium transition metal composite oxide having a small and highly uniform particle diameter to be obtained. Provided is a method for p...
https://drivepatents.com/patents/977594 · 12 Mar 2014
The present invention provides a method for treating the particle surface of a cathode active material for a lithium secondary battery, the method comprising (a) preparing a cathode active material having a lithium compound; (b) generating a plasma from a ...
https://drivepatents.com/patents/977516 · 12 Mar 2014
A lithium-ion secondary battery 100 includes a positive electrode current collector 221 and a porous positive electrode active material layer 223 retained by the positive electrode current collector 221. The positive electrode active material layer 223 con...
https://drivepatents.com/patents/977817 · 5 Mar 2014
Provided is a process for manufacturing, at a low cost and efficiently, lithium titanium oxides which are useful for electricity storage devices. A desired lithium titanium oxide can be obtained by heating at least both (1) a titanium compound and (2) a li...