Title:
SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/231134
Kind Code:
A1
Abstract:
Disclosed in the present invention is a secondary battery in which retainers are coupled between a case and the uncoated portions of electrode assemblies so that the electrode assemblies and current collectors can be fixed and prevented from being separated. Disclosed in one embodiment is a secondary battery comprising: a plurality of electrode assemblies of which each has a cathode plate and an anode plate arranged with a separator therebetween, and which includes the uncoated portions of the cathode plate and the anode plate; a case in which the electrode assemblies are embedded; a cap plate coupled to the case; current collectors respectively coupled to the uncoated portions of the plurality of electrode assemblies through a plurality of coupling portions; and retainers inserted and coupled to on one side of the current collectors, wherein the retainers are coupled to the current collectors through protrusion portions having a width greater than that between the coupling portions of the current collectors.
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Inventors:
LEE HYUN SOO (KR)
Application Number:
PCT/KR2020/006194
Publication Date:
November 19, 2020
Filing Date:
May 11, 2020
Export Citation:
Assignee:
SAMSUNG SDI CO LTD (KR)
International Classes:
H01M50/50; H01M50/533; H01M50/534
Foreign References:
| KR20150071530A | 2015-06-26 | |||
| KR20110114411A | 2011-10-19 | |||
| KR101720611B1 | 2017-03-28 | |||
| KR20150000678A | 2015-01-05 | |||
| JP2000195475A | 2000-07-14 |
Attorney, Agent or Firm:
SUNGAM SUH INTERNATIONAL PATENT & LAW FIRM (KR)
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