Page 256 - Battery Reference Book

19/22 Nickel batteries
19.6 Sodium-nickel chloride melt in @-alumina. The basic cell reaction is:
secondary batteries Discharge
2Na + NiClz Ni + 2NaCl (19.25)
This is a relatively new type of rechargeable battery charge
operating at 200-300°C with an emf of about 2.6V In this cell design the positive nickel electrode is sealed
at operating temperatures and with possibilities for to a metallized @-alumina collar which is then attached
electric vehicle propulsion. to a @-alumina canister by a glass seal. This assembly
In this battery the positive electrode is a metal is then welded onto a mild steel can and the space in
chloride. Nickel chloride has been particularly studied. between filled with sodium metal. The 8-alumina tube
The negative electrode is sodium metal. The liquid is then filled with positive electrode material, namely
electrolyte consists of a basic sodium chloroaluminate nickel powder, sodium chloride and aluminium powder.