Battery cell having improved safety
AssigneeSK On Co., Ltd.
InventorsJohn Cronin, So Eun KIM, Soo Min PARK, Hyung Ju PAIK, Hae Ryong JEON
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Abstract
A battery cell including an electrode assembly including an active material and a foil and a can accommodating the electrode assembly is provided. The foil may include a first region covered with the active material and having a first thickness, a second region covered with the active material and extending from the first region, and a third region protruding from the second region, The third region may have a third thickness, greater than the first thickness, and the second region may have a second thickness, greater than the first thickness and less than the third thickness.
Claims13
A battery cell comprising:
- an electrode assembly comprising an active material and a foil;
- and
- a can accommodating the electrode assembly,
- wherein the foil includes:
- a first region covered with the active material and having a first thickness;
- a second region covered with the active material and extending from the first region;
- and
- a third region protruding from the second region,
- wherein the third region has a third thickness, greater than the first thickness, and
- the second region has a second thickness, greater than the first thickness and less than the third thickness.
Dependencies are inferred from the claim text.