US 12,009,550 B1
Lower plastic assembly, end cover assembly, energy-storage apparatus, and electronic device
Wenyang Zhou, Guangdong (CN); Yongfeng Xiong, Guangdong (CN); and Feng Wang, Guangdong (CN)
Assigned to Shenzhen Hithium Energy Storage Technology Co., Ltd., Guangdong (CN); and Xiamen Hithium Energy Storage Technology Co., Ltd., Fujian (CN)
Filed by Shenzhen Hithium Energy Storage Technology Co., Ltd., Guangdong (CN); and Xiamen Hithium Energy Storage Technology Co., Ltd., Fujian (CN)
Filed on Nov. 13, 2023, as Appl. No. 18/389,031.
Claims priority of application No. 202310091040.0 (CN), filed on Feb. 9, 2023.
Int. Cl. H01M 50/578 (2021.01); H01M 50/15 (2021.01); H01M 50/16 (2021.01); H01M 50/342 (2021.01)
CPC H01M 50/578 (2021.01) [H01M 50/15 (2021.01); H01M 50/16 (2021.01); H01M 50/3425 (2021.01)] 18 Claims
OG exemplary drawing
 
1. A lower plastic assembly, applicable to an energy-storage apparatus and comprising a first lower plastic member, wherein the first lower plastic member comprises a first-lower-plastic-member body, wherein the first-lower-plastic-member body has a first top surface and a first bottom surface opposite the first top surface, and further has a first part and a second part, wherein
the first part and the second part cooperatively define a first deformation portion in a length direction of the first-lower-plastic-member body, a ratio of a depth h1 of the first deformation portion to a height h2 of the first part ranges from 0.05 to 0.42 in a thickness direction of the first-lower-plastic-member body, and a ratio of the depth h1 of the first deformation portion to a height h3 of the second part ranges from 0.16 to 0.6; and
the first deformation portion has a first notch and a first sub-notch, wherein the first sub-notch extends through the first top surface and the first bottom surface and is in communication with the first notch, the first sub-notch extends away from the first notch in a width direction of the first-lower-plastic-member body, and an orthogonal projection of the first notch on the first top surface falls within an orthogonal projection of the first sub-notch on the first top surface.