▎ 摘 要
NOVELTY - Silicon-containing electrode formed by coating a silicon-containing slurry onto a conductive current collector, and drying the resulting coating, is claimed. The slurry comprises: a poly(carboxylic acid) binder and a particulate anode active material in a mixed solvent system comprising a first solvent and a second solvent that is miscible with the first solvent. The first solvent is an amide compound (I). The second solvent is water, and/or organic solvent. The first solvent and the second solvent are present in the mixed solvent system in a respective volume ratio of 99:1- 1:9. The organic solvent comprises an alcohol, an ether, a nitrile, or an amide that is different from the amide of the first solvent. The particulate anode active material comprises silicon-containing particles, and/or carbon particles. USE - Silicon-containing electrode useful as an anode in lithium electrochemical cell, which is useful in a battery (all claimed). The battery is useful in electric vehicles, plug-in hybrid electric vehicles or portable electronic devices. ADVANTAGE - The battery has high specific capacities and efficiency. DETAILED DESCRIPTION - Silicon-containing electrode formed by coating a silicon-containing slurry onto a conductive current collector, and drying the resulting coating, is claimed. The slurry comprises: a poly(carboxylic acid) binder and a particulate anode active material in a mixed solvent system comprising a first solvent and a second solvent that is miscible with the first solvent. The first solvent is an amide compound of formula (I). The second solvent is water, and/or organic solvent. The first solvent and the second solvent are present in the mixed solvent system in a respective volume ratio of 99:1- 1:9. The organic solvent comprises an alcohol, an ether, a nitrile, or an amide that is different from the amide of the first solvent. The particulate anode active material comprises silicon-containing particles, and/or carbon particles. (R1,R2, R3 = H, alkyl, alkoxy, or a polyether group). INDEPENDENT CLAIMS are included for: (1) a lithium electrochemical cell, which comprises an anode, a cathode, a lithium ion-conducting separator between the anode and the cathode, and a lithium ion-containing electrolyte contacting the anode, the cathode, and the separator, where the anode is the silicon-containing electrode; and (2) a battery comprising electrochemical cells electrically connected together in series and/or in parallel. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an electrochemical cell. 10Electrochemical cells 12First electrode 14Silicon-containing second electrode 16Porous separator 18Electrolyte