US 2020/0287186 A1Published application

Battery cell having main gas discharge tube and method for manufacturing the same

AssigneeLG Chem, Ltd.

InventorsCho Long KIM, Yong Su CHOI, Sang Hun KIM, Sang Suk JUNG, Won Pill HWANG, Yong KIM

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Abstract

The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.

Claims7

Dependent claims

A method for manufacturing a battery cell, the method comprising:

a preparation step (S10) of preparing an electrode assembly to which an electrode lead is coupled;
an accommodation step (S20) of accommodating the electrode assembly in a case so that an end of the electrode lead is led out of the case;
a disposition step (S30) of disposing a lead film on each of top and bottom surfaces of the electrode lead disposed on a sealing surface of the case;
a burying step (S40) of burying one end of a main gas discharge tube in the lead film in a state in which the main gas discharge tube is disposed in the case;
and
a sealing step (S50) of thermally fusing the entire sealing surface of the case to complete the battery cell.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/883,123Filed 26 May 2020
Priority: KR 10-2015-01237281 Sep 2015
Published: 10 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

H01M 50/394
Arrangements for facilitating escape of gases: gas-pervious parts or elements
H01M 10/0436
Construction or manufacture in general: small-sized flat cells or batteries for portable equipment
H01M 50/10
Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells:…
H01M 50/105
Characterised by their shape or physical structure: pouches or flexible bags

Family

Application15/565,854Division · filed 11 Oct 2017
Application16/883,123Division
US 10,700,324 B2Related patent
US 11,557,810 B2Related patent
US 2018/0114964 A1Published application
US 2020/0287186 A1This patent

From the US filing history. Foreign family members aren’t listed.

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