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US 12,586,867 B2Granted
Porous composite separator for secondary battery and lithium secondary battery including the same
AssigneeSK On Co., Ltd.
InventorsJeong Han Kim, Whee Sung Kim, Yun Kyung Jo, Jae Woong Kim
Life of this patent
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Abstract
Provided are a composite separator for a secondary battery and a lithium secondary battery including the same, and specifically, a composite separator for a secondary battery showing excellent physical properties such as thermal safety and electrochemical safety, and a lithium secondary battery including the separator are provided.
Claims18
A porous composite separator comprising:
- a porous substrate;
- and
- a porous coating layer formed by coating one or both surfaces of the porous substrate with a slurry including a gas adsorbent and a binder,
- wherein the gas adsorbent is coated or adsorbed with an inorganic acid, and
- wherein a content of the inorganic acid relative to a weight of the gas adsorbent is 0.1 to 5 wt %.
2 more elements
A porous composite separator comprising:
- a porous substrate;
- and
- a porous coating layer formed by coating one or both surfaces of the porous substrate with a slurry including a gas adsorbent and a binder,
- wherein the gas adsorbent is coated or adsorbed with an inorganic acid including fluorine.
1 more element
Dependencies are inferred from the claim text.