Cell-core for lithium slurry battery, and lithium slurry battery module
摘要
說明書
The cathode surface current-collecting layer further comprises an interface-improving layer, and the interface-improving layer is combined on the surface of the cathode surface current-collecting layer by one or more methods of vacuum evaporation deposition, magnetron sputtering, plasma deposition, spraying, bonding, mechanical pressing, printing or inkjet printing. The material of the interface-improving layer comprises the conductive agent and the binder, and the mass ratio of the binder to the conductive agent is 0.5 to 20:99.5 to 80. Or the interface-improving layer only comprises the conductive agent. The conductive agent is selected from the group consisting of carbon black, Ketjenblack, graphene, carbon nanotube, carbon fiber, amorphous carbon, metal conductive particle and metal conductive fiber, or a mixture thereof. The material of the metal conductive particle or the metal conductive fiber is aluminum, stainless steel, silver and so on. The binder is selected from the group consisting of polyvinyl chloride, polyethylene, polypropylene, polystyrene, polytetrafluoroethylene, polyterephthalate, polyamide, polyimide, polyether nitrile, polymethyl acrylate, polyvinylidene fluoride, polyurethane, polyacrylonitrile, styrene butadiene rubber, sodium carboxymethyl cellulose and modified polyolefin, or a mixture thereof. The interface-improving layer is tightly coated on the grid of the cathode surface current-collecting layer, capable of improving the interface properties of the cathode surface current-collecting layer and decreasing interface resistance between itself and the electric-conductive cathode layer.
