Method of Preparing Cathode Slurry for Secondary Battery

The invention provides a method of preparing a cathode slurry for a secondary battery, comprising a binder material, comprising a copolymer P1 and a copolymer P2. Both copolymers each independently comprise a structural unit derived from a monomer containing an acid group; a structural unit derived...

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Bibliographische Detailangaben
Hauptverfasser:	Qiu, Hongke, Ho, Kam Piu
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	The invention provides a method of preparing a cathode slurry for a secondary battery, comprising a binder material, comprising a copolymer P1 and a copolymer P2. Both copolymers each independently comprise a structural unit derived from a monomer containing an acid group; a structural unit derived from a monomer selected from the group consisting of an amide group-containing monomer, a hydroxyl group-containing monomer, and combinations thereof; and a structural unit derived from a monomer selected from the group consisting of a nitrile group-containing monomer, an ether group-containing monomer, an epoxy group-containing monomer, and combinations thereof. As a result of the chemical compositions of the respective copolymers and the method itself, the cathode slurry is well dispersed, and batteries made therefrom have good cycling stability.