PROCESS FOR PRODUCTION OF NEGATIVE ELECTRODE PRECURSOR MATERIAL FOR BATTERY, NEGATIVE ELECTRODE PRECURSOR MATERIAL FOR BATTERY, AND BATTERY

To provide a method for producing a negative electrode precursor material for a battery capable of preparing a negative electrode, which has good adhesiveness between an Al current collector and a Sn-plated film therein and therefore can be reduced in thickness, has good current collecting performance, and suppresses deformation and generation of dendrites during operation; the negative electrode precursor material for a battery; and a battery equipped with the negative electrode precursor material for a battery as a negative electrode. [0002] A molten salt battery 1 includes a positive electrode 2 formed by forming an active material film 22 on an Al-made current collector 21, a separator 3 made of a glass cloth impregnated with a molten salt as an electrolyte, and a negative electrode 4 formed by forming a Zn film 42 and an active material film 43 on an Al-made current collector 41, which are respectively contained in a substantially rectangular parallelepiped Al-made case 5. The active material 43 adsorbs and releases Na ions contained in the molten salt.