Patent number: 12125985
Abstract: An electrode assembly, a battery, and a battery pack and a vehicle including the same are provided. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes a first portion coated with an active material and a second portion at a first side and adjacent the first portion, the second portion being exposed beyond the separator along a first axial direction of the electrode assembly. A part of the second portion is bent in a radial direction of the electrode assembly forming a first surface region including stacked layers of the second portion, and in a partial region of the first surface region, a number of the stacked layers of the second portion is 10 or more in the in the first axial direction.
Type:
Grant
Filed:
December 21, 2022
Date of Patent:
October 22, 2024
Assignee:
LG ENERGY SOLUTION, LTD.
Inventors:
Hae-Jin Lim, Jin-Hak Kong, Soon-O Lee, Kyu-Hyun Choi, Do-Gyun Kim, Su-Ji Choi, Kwang-Su Hwangbo, Geon-Woo Min, Min-Ki Jo, Jae-Won Lim, Hak-Kyun Kim, Je-Jun Lee, Ji-Min Jung, Jae-Woong Kim, Jong-Sik Park, Yu-Sung Choe, Byoung-Gu Lee, Duk-Hyun Ryu, Kwan-Hee Lee, Jae-Eun Lee, Bo-Hyun Kang, Pil-Kyu Park