Disconnection-proof battery module
AssigneeLG Energy Solution, Ltd.
InventorsHee Su Lee, Jaehun Oh, Hyuk An, Won Kyoung Park, Seungok Jee
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Abstract
The present disclosure provides: a structure of a pouch type battery cell provided with electrode leads protruding from lengthwise ends thereof, respectively, wherein the pouch type battery cell includes a margin capable of extending the electrode leads by deforming as end portions of the electrode leads are tensioned; and a structure of a battery module with a battery cell stack accommodated therein formed by stacking at least one of above-described battery cells.
Claims13
A battery module comprising:
- a battery cell stack having a plurality of pouch type battery cells stacked therein, each of the plurality of pouch type battery cells comprising electrode leads protruding from lengthwise ends thereof, respectively;
- and
- a busbar frame at an lengthwise end portion of the battery cell stack and comprising a busbar having the electrode leads connected thereto,
- wherein at least one of the plurality of pouch type battery cells comprises:
- a margin capable of extending the electrode leads by deforming as end portions of the electrode leads are tensioned, and
- wherein predetermined sections at two sides of the margin are substantially on a same plane.
The battery module of claim 41, wherein the margin has an arc-shaped longitudinal cross-section with a radius of curvature.
Dependencies are inferred from the claim text.