About 57 results
https://drivepatents.com/patents/1387875 · 18 Jun 2025
A cathode material including a plurality of particles (1). Each of the plurality of particles (1) includes a core layer (10) and a coating layer (20) coated thereon. The core layer (10) includes a lithium metal oxide material having a composition of Li[Nia...
https://drivepatents.com/patents/1398369 · 28 May 2025
The present invention relates to a cobalt-free positive electrode active material having improved thermal stability and electrochemical properties, and a lithium secondary battery using the same.
https://drivepatents.com/patents/1396358 · 19 Mar 2025
Herein are provided a positive electrode active material for a lithium secondary battery comprising a lithium transition metal oxide on which a crumpled graphene-derived coating layer is formed, and a method of preparing the same. The crumpled graphene has...
https://drivepatents.com/patents/1400284 · 19 Feb 2025
The present invention relates to a positive electrode active material and a lithium secondary battery comprising the same, and more specifically, to a positive electrode active material including a lithium composite oxide containing at least nickel and tit...
https://drivepatents.com/patents/1395715 · 16 Oct 2024
A positive electrode (50) of a nonaqueous electrolyte secondary battery (100) disclosed herein includes a positive electrode active material layer (54) with a multilayer structure including a positive electrode lower layer (54A) close to a positive electro...
https://drivepatents.com/patents/1366402 · 11 Jul 2024
A positive electrode active material for a lithium secondary battery has secondary micro particles having an average particle size (D50) of 1 to 10 μm formed by agglomeration of primary macro particles having an average particle size (D50) of 0.5 to 3 μm...
https://drivepatents.com/patents/1400166 · 7 Feb 2024
The present application provides a high-nickel ternary positive electrode active material, which comprises a core Li1+a[LixCoyMnzMb]O2, a fast ionic conductor LiαAlXSiYO4 of a first shell layer, an oxide of an element R of a second shell layer, and a tran...
https://drivepatents.com/patents/942483 · 1 Jun 2016
Provided is a cathode active material for a non-aqueous electrolyte secondary battery, with which it is possible to improve the output characteristics during use in extremely low-temperature environments. A lithium compound is mixed with nickel cobalt mang...
https://drivepatents.com/patents/946776 · 20 Jan 2016
[Object] Provided is a means capable of suppressing a decrease in capacity and improving output characteristics of a non-aqueous electrolyte secondary battery when the battery is used for a long period of time. [Solving Means] Disclosed is a positive elect...
https://drivepatents.com/patents/954558 · 6 Jan 2016
[Object] Provided is a means which is capable, with respect to a non-aqueous electrolyte secondary battery, of suppressing a decrease in capacity when the battery is used for a long period of time, and improving cycle characteristics. [0002] [Solving Means...