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https://drivepatents.com/patents/1387046 · 25 Mar 2026
This application provides an internal series battery. The internal series battery includes a series module, a positive current collector, and a negative current collector. The series module includes battery units and intermediate current collectors. The nu...
https://drivepatents.com/patents/1379741 · 19 Mar 2026
The present disclosure provides a lithium ion secondary battery, in which surface roughness (Ra) of a surface of a positive electrode active material layer containing a positive electrode active material is less than 1.0×104 Å, and the lithium ion secon...
https://drivepatents.com/patents/1379742 · 19 Mar 2026
The present disclosure relates to a lithium secondary battery including a positive electrode that has a positive electrode current collector and a positive-electrode active material layer, a negative electrode that has a negative electrode current collecto...
https://drivepatents.com/patents/1394947 · 18 Mar 2026
The present invention relates to a gas collection device. The objective of the present invention is to provide a gas collection device capable of collecting highly concentrated gas for a battery having a case made of a rigid material of various sizes, part...
https://drivepatents.com/patents/1386943 · 18 Mar 2026
A negative electrode sheet (100), a secondary battery (1000), and an electricity-consumption device (2000) are provided. The negative electrode sheet (100) includes a negative active material layer (10). Heat release Q of the negative active material layer...
https://drivepatents.com/patents/1400570 · 18 Mar 2026
In order to overcome the problems of insufficient storage performance and cycle performance of existing lithium ion batteries, the present application provides an electrolyte, comprising a solvent, a lithium salt and an additive, wherein the additive compr...
https://drivepatents.com/patents/1387075 · 11 Mar 2026
The present application provides a battery separator and a preparation method therefor, and a battery. The battery separator provided by the present application comprises a base film and a coating coated on one or both sides of the base film, wherein the c...
https://drivepatents.com/patents/1386368 · 4 Mar 2026
Battery Module with at least one accumulator comprising a phase-change metal powder to limit the propagation of thermal runaway and the associated pressure increase. [0002] The invention relates to a battery module (M) comprising at least one phase-change ...
https://drivepatents.com/patents/1388498 · 25 Feb 2026
Disclosed is a technique that can improve capacity of a positive electrode active material having an O2-type structure when applied to a positive electrode active material layer of a lithium-ion battery. The positive electrode mixture of the present disclo...
https://drivepatents.com/patents/1387608 · 25 Feb 2026
Provided are a negative active material, a negative electrode plate, a battery, a battery module, and an electric device. A particle size distribution A of the negative active material is (D90-D10)/D50. a defect degree B of the negative active material is ...