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

摘要

Disclosed are: a process for producing a negative electrode precursor material for use in a battery, which enables the production of a negative electrode that has good adhesion between an Al current collector and an Sn coating film contained therein and therefore can be reduced in thickness, has good current collectivity, and does not undergo deformation or generation of dendrites during being operated; the negative electrode precursor material; and a battery equipped with the negative electrode precursor material as a negative electrode. Specifically disclosed is a molten salt battery (1) which comprises a positive electrode (2) comprising an Al-made current collector (21) and an active material layer (22) formed on the current collector (21), a separator (3) comprising a glass cloth impregnated with a molten salt that serves as an electrolyte, and a negative electrode (4) comprising a Zn coating film (42) and an active material layer (43) both formed on an Al-made current collector (41), wherein the positive electrode (2), the separator (3) and the negative electrode (4) are contained in an almost rectangular parallelepiped Al-made case (5). The active material (43) can store and release Na ions contained in the molten salt.