Prismatic secondary battery with improved safety
AssigneeLG Energy Solution, Ltd.
InventorsJi Min PARK, Joo Hwan SUNG, Kyung Hwan JUNG
Life of this patent
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Abstract
Provided is a prismatic secondary battery, in one example the prismatic secondary battery including: a case including an opening; an electrode assembly stored inside the case; and a cap plate coupled to the opening in the case, and having electrode terminals of a positive electrode and a negative electrode, wherein: a swelling tape is attached to a surface of the electrode assembly, wherein the swelling tape elongates or expands in contact with an electrolyte in the case, and a concave first beading part is formed on at least two surfaces facing each other along a front, rear, left and right perimeter of the case.
Claims14
A prismatic secondary battery comprising:
- a case including an opening;
- an electrode assembly stored inside the case;
- and
- a cap plate coupled to the opening in the case, and having electrode terminals of a positive electrode and a negative electrode, wherein:
- a swelling tape is attached to a surface of the electrode assembly, wherein the swelling tape elongates or expands in contact with an electrolyte in the case, and
- a concave first beading part is formed on at least two surfaces facing each other along a front, rear, left and right perimeter of the case.
The prismatic secondary battery of claim 134, wherein
- the second beading part supports by contacting a lower surface of the electrode assembly.
Dependencies are inferred from the claim text.