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US 12,573,632 B2Granted
Anode mixture for secondary battery, anode and secondary battery including the same
AssigneeLG Chem, Ltd.
InventorsCheolhoon Choi, Min Ah Kang, Sungjin Lee
Life of this patent
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Abstract
The present disclosure relates to an anode mixture for a secondary battery, an anode and a secondary battery including the same. Specifically, in one embodiment of the present disclosure, there is provided an anode mixture for a secondary battery including a binder composition, which is a mixture of an AAM/AA/AN copolymer and HASE, in a specific content range.
Claims18
An anode mixture for a secondary battery, comprising an anode active material and a binder composition,
- wherein the binder composition is a one component binder comprising:
- hydrophobically modified alkali soluble emulsion (HASE);
- and
- a copolymer comprising a first repeating unit derived from an acrylamide (AAM)-based first monomer, a second repeating unit derived from an acrylic acid (AA)-based second monomer, and a third repeating unit derived from an acrylic nitrile (AN)-based third monomer, and
- the hydrophobically modified alkali soluble emulsion (HASE) and the copolymer are included in a weight ratio of 1:1.5 to 1:5, and
- the first repeating unit is included in an amount of 35 to 90 wt %, the second repeating unit is included in an amount of 0.1 to 30 wt %, and the third repeating unit is included in an amount of 5 to 40 wt % based on a total amount (100 wt %) of the copolymer, and
- wherein the binder composition is included in an amount of 3 to 10 wt % based on a total solid content (100 wt %) in the anode mixture.
4 more elements
An anode for a secondary battery, comprising an anode active material;
- and
- a one component binder comprising a polymer derived from hydrophobically modified alkali soluble emulsion (HASE);
- and a copolymer comprising a first repeating unit derived from an acrylamide (AAM)-based first monomer, a second repeating unit derived from an acrylic acid (AA)-based second monomer, and a third repeating unit derived from an acrylic nitrile (AN)-based third monomer,
- wherein the hydrophobically modified alkali soluble emulsion (HASE) and the copolymer are included in a weight ratio of 1:1.5 to 5, and
- the first repeating unit is included in an amount of 35 to 90 wt %, the second repeating unit is included in an amount of 0.1 to 30 wt %, and the third repeating unit is included in an amount of 5 to 40 wt % based on a total amount (100 wt %) of the copolymer.
2 more elements
Dependencies are inferred from the claim text.