The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2018
Filed:
Dec. 29, 2015
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Hojung Yang, Suwon-si, KR;
Jinseok Heo, Hwaseong-si, KR;
Hwiyeol Park, Ansan-si, KR;
Kyunghoon Cho, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD, Gyeonggi-Do, KR;
Abstract
A three dimensional ('3D') secondary battery includes an electrolyte layer and an anode active material layer that are sequentially stacked on a plurality of first trenches that are provided in a cathode active material layer where, in the anode active material layer, a plurality of second trenches having similar shape to that of the first trenches is provided and the plurality of second trenches are filled with an elastic member and where the elastic member absorbs expansion of the anode active material layer during charging and discharging the 3D secondary battery, and thus, the degradation of the 3-dimensional secondary battery is prevented.