(US4728587-A)      Prim. or sec. battery comprises anode and cathode section, with electrolyte section which circulates an electrolyte in which a metal salt and a halogen are dissolved. The halogen gas is generated from the battery and is then circulated through the battery section, halogen storage tank and electrolyte tank, being absorbed in the halogen tank, filled with a cooled organic solventk.. solvent, during the charging operation and then beng delivered from the tank during the discharge period. An inert gas can also be circulated in a ratio to halogen gas of 1:9-9:1, (3:7-6:4). Pref. halogen in Cl2 and organic solvent is pref. hexachlorobutadiene.    ADVANTAGE -   Energy efficiency is relatively high and halogen is safely stored.    (DE3620556-C)      A secondary battery includes a battery section with an anode, a cathode and an electrolyte, and chlorine as the active cathode material. The battery has an electrolyte section and a chlorine storage vessel. The chlorine is stored in an organic solvent. The battery includes a circulation system for an inert gas. The organic solvent is a fluorine or chlorine substituted hydrocarbon with 3-8 carbon atoms, or an oligomer of fluorine or chlorine unsaturated cpds.    ADVANTAGE -   The electrical input reqd. by the battery is reduced, improving battery output. (13pp)    (JP92013833-B)      Battery includes a halogen, sp. Cl2 and/or Br2 as cathode active material, stored in an supplied from a solvent, pref. a halo-organic solvent esp. hexachloro butadiene. Solvent contg. absorbed halogen is stored in a tank; and halogen is entrained for use in an inert gas stream. Ratio of inert gas to halogen is 1:9 to 9:1 by vol. The temp. of the solvent is raised or lowered so that the halogen is absorbed or yielded as required during charge and discharge. The solvent contains dispersed C powder and a conductive rod to prevent static build-up.    USE/ADVANTAGE -   In, e.g, prim. or sec. batteries for electric vehicles. Electric power demand during battery operation is minimal. (J62170175-A)    (JP93064433-B)      Battery includes a halogen, esp. Cl2 and/or Br2, as cathode active material, stored in and supplied from a solvent, pref. a halo-organic solvent, esp. hexachlorobutadiene.    Solvent contg. absorbed hal is stored in a tank; hal is entrained for use in an inert gas stream. Ratio of inert gas to hal is 1:9 to 9:1 by vol. The temp. of the solvent is raised or lowered so that the hal is absorbed or yielded as required during charge and discharge. The solvent contains dispersed C powder and a conductive rod to prevent static build-up.    USE/ADVANTAGE -   In e.g. prim. or sec. batteries for electric vehicles. Electric power demand during battery operation is minimal. (J61292864-A)    (JP93064434-B)      Battery includes a halogen, esp. Cl2 and/or Br2, as cathode active material, stored in and supplied from a solvent, pref. a halo-organic solvent, esp. hexachlorobutadiene.    Solvent contg. absorbed hal is stored in a tank; hal is entrained for use in an inert gas stream. Ratio of inert gas to hal is 1:9 to 9:1 by vol. The temp. of the solvent is raised or lowered so that the hal is absorbed or yielded as required during charge and discharge. The solvent contains dispersed C powder and a conductive rod to prevent static build-up.    USE/ADVANTAGE -   In e.g. prim. or sec. batteries for electric vehicles. Electric power demand during battery operation is minimal. (J62108476-A)