| abstract |
An object of the present invention is to provide a high-energy-density battery that does not increase the expansion and contraction of electrodes even after repeated charge / discharge cycles, does not destroy the conductive network inside the electrodes, and does not reduce battery capacity or increase internal resistance. Provided is a water electrolyte secondary battery. The present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. As the negative electrode, a current collector having a three-dimensional structure includes a material containing an element capable of forming an alloy with lithium. A nonaqueous electrolyte secondary battery using an electrode formed by depositing and forming a thin film, wherein the thin film is formed by a thin film forming method such as an electroplating method, a CVD method, a PVD method, a sputtering method, a thermal spraying method, and a vacuum evaporation method. Non-aqueous electrolyte secondary battery. [Selection diagram] Fig. 1 |