Back to results
US 10,593,954 B2Granted
Positive electrode having specified elongation for improving safety and secondary battery including the same
AssigneeLG Chem, Ltd.
InventorsSu-Rim Lee, Joon Kwon, Jae-Hyun Lee
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to an electrode having improved safety and a secondary battery including the same. It is possible to prevent or significantly reduce an internal short-circuit between a positive electrode current collector and a negative electrode current collector and an internal short-circuit between a positive electrode current collector and a negative electrode active material layer, caused by nail penetration, by controlling the elongation of a positive electrode to 0.6-1.5%.
Claims6
A positive electrode for a secondary battery, comprising:
- a positive electrode current collector;
- and
- a positive electrode active material disposed on at least one surface of the positive electrode current collector,
- wherein the positive electrode has an elongation of 0.6-1.5%,
- the elongation is measured in accordance with ISO527, and
- wherein the elongation is an average elongation of an elongation in a machine direction and an elongation in a transverse direction.
3 more elements
Dependencies are inferred from the claim text.