| 摘要 |
PURPOSE:To provide a separator having good wettability to molten salt and sufficient porosity by using Li or Li alloy as a negative electrode, metal sulfide such as iron sulfide as a positive electrode, and placing a plate-shaped porous boron nitride obtained by using magnesia produced by heat decomposition as a binder between both electrodes. CONSTITUTION:A positive electrode 1 using metal sulfied such as iron sulfied or iron disulfied as an active material and a negative electrode 3 using Li or Li alloy as an active material are used, and a plate formed with porous boron nitride particles are placed between both electrodes. Porous boron nitride particles are prepared in such a way that magnesium nitrate solution corresponding to 20wt% magnesia is added to boron nitride particles having a particle size of, for example, 100-150mu, and they are dried and made in a plate shape, and burned to form a plate-shaped porous separator. Thereby, a battery using the separator which is low cost, easy to handle, and has good wettability to molten salt and sufficient porosity is provided. |
