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US 2022/0190450 A1Published application
CID Filter And Secondary Battery Comprising The Same
AssigneeLG Energy Solution, Ltd.
InventorMin Hee Park
Life of this patent
Estimating the term…
Abstract
According to one aspect of the present invention, a body part of a CID filter of a secondary battery has a main through-hole and an auxiliary through-hole defined therein. The auxiliary hole is positioned between a CID gasket and an area of the CID filter that is electrically connected to an electrode tab.
Claims15
A secondary battery comprising:
- an electrode assembly having a structure in which electrodes and separators are alternately disposed;
- a battery can configured to accommodate the electrode assembly and having an open upper portion;
- a top can coupled to the open upper portion of the battery can;
- a CID filter positioned below the top cap;
- a CID gasket positioned in close contact with a side portion of the CID filter;
- and
- an electrode tab protruding from the electrode assembly, the electrode tab being electrically connected to the CID filter at a first connection area of the CID filter offset from a center of the CID filter towards a first side of the CID filter,
- wherein the CID filter comprises a body part defining a main body,
- the body part comprising:
- a plurality of main though-holes disposed along a circumferential direction of the body part, each of the main through-holes having a first width (W1);
- and
- an auxiliary through-hole having a second width (W2) less than the first width (W1), the auxiliary through-hole being positioned between the first connection area and the CID gasket.
9 more elements
A CID filter comprising:
- a body part defining a main body, the body part comprising:
- a plurality of main though-holes disposed along a circumferential direction of the body part, each of the main through-holes having a first width (W1);
- and
- at least one auxiliary through-hole having a second width (W2) less than the first width (W1),
- wherein a first point is located at an area offset from a center of the body part towards a first side of the body part, and
- a second point is located on a circumference of the body part,
- the at least one auxiliary through-hole being defined between the first point and the second point in at least one second connection area of the body part, each of the at least one second connection area being defined by an area connecting any one of the main through-holes to an adjacent one of the main through-holes along the circumferential direction of the body part.
4 more elements
Dependencies are inferred from the claim text.