Abstract: An anode and a battery capable of realizing a high capacity and improving charge and discharge cycle characteristics, and manufacturing methods thereof are provided. An anode active material layer contains a particulate anode active material including a simple substance or a compound of an element capable of forming an alloy with Li, a particulate binder including a copolymer of vinylidene fluoride or polyvinylidene fluoride, and a conductive agent. The anode active material layer is formed by using a dispersion medium having a swelling degree of 10% or less to the binder, specifically pure water or the like. The particulate binder functions as a cushion to absorb expansion and shrinkage of the anode active material due to charge and discharge, and lowering of electron conductivity caused by generation of cracks or separation is prevented. Further, since the anode active material is not covered with the binder, electrode reaction is well performed.

Abstract: An anode and a battery capable of realizing a high capacity and improving charge and discharge cycle characteristics, and manufacturing methods thereof are provided. An anode active material layer (12) contains a particulate anode active material (12A) including a simple substance or a compound of an element capable of forming an alloy with Li, a particulate binder (12B) including a copolymer of vinylidene fluoride or polyvinylidene fluoride, and a conductive agent (12C). The anode active material layer (12) is formed by using a dispersion medium having a swelling degree of 10% or less to the binder (12B), specifically pure water or the like. The particulate binder (12B) functions as a cushion to absorb expansion and shrinkage of the anode active material (12A) due to charge and discharge, and lowering of electron conductivity caused by generation of cracks or separation is prevented. Further, since the anode active material (12A) is not covered with the binder (12B), electrode reaction is well performed.

Abstract: A non-aqueous electrolyte secondary battery having a large discharge capacity and improved charge/discharge cycle characteristics is disclosed. The battery has a negative electrode which comprises a negative electrode active material composed of an element or a compound of the element capable of reacting with lithium, and a negative electrode current collector, where the negative electrode active material contains at least carbon black.