(JP7029599-A)      An electric current producing cell (I), comprises (A) a solid anode (II) comprising one or more alkali(ne earth) metals, Li-Al alloys, Na alloys or Li and Na intercalated carbon: (B) a composite cathode (III) contg. cathode active material, one or more conjugated carbon-sulphur cpds of formula (IIIa) which don't involve the forming and breaking S-S bonds in the polymer backbone, a polymer electrolyte for transporting ions and conducting carbon for electron transport; and (C) a polymer electrolyte (IV) contg. Li or Na salt (IVa), which is chemically inert with respect to (II) and (III) and permits ion transport between them.    Also claimed are a method of forming a solid state rechargeable battery by: forming (II) pref. from one or more alkali(ne earth) metal or an intercalated carbon; forming (III) by coating a substrate with an effective amount of poly(carbon disulphide), and (IV) and conducting carbon, pref. acetylene black; and enclosing (IV) between (II) and (III); forming (III) as described above; and (III) comprising a cathode material of formula (CSx)n (IIIa), where x = 1.7 - 2.3 and n is pref. greater than 20.    USE/ADVANTAGE -   (I) is a rechargeable solid state electric current producing cell. (I) are inexpensive and have long cycle lives, high specific energy and current. They also have long shelf storage and low discharge rate. (IIIa) does not undergo polymerisation and depolymerisation during oxidation and reduction.    (US5441831-A)      A cell comprises: (a) a solid anode including an anode-active material; (b) a composite cathode comprising a cathode-active material; and (c) an electrolyte contg. an alkali metal salt.    Anode-active material is selected from alkali(ne earth) metal(s), Li-Al alloy(s), Na alloy(s), Li intercalated C, or Na intercalated C. Cathode-active material includes a mixt. of conjugated, solid poly(carbon disulphide) polymer(s) including -(C(=S)-S)n- and -(C(=S)-C(=S)-S)n- gps. of formula (CSx)n where x is 1.2-2.3; and n is 2 or more. Electrolyte is chemically inert w.r.t. anode and cathode.    Pref. poly(carbon disulphide) polymers do not undergo (de)polymerisation during oxidn. and redn.    USE/ADVANTAGE -   Used for rechargeable batteries for e.g. flashlights, lap top computers, electric vehicles etc. The batteries have longer life, higher specific energy content, higher current and lower rate of self-discharge.    (EP602984-B1)      An electric current producing cell (I), comprises (A) a solid anode (II) comprising one or more alkali(ne earth) metals, Li-Al alloys, Na alloys or Li and Na intercalated carbon: (B) a composite cathode (III) contg. cathode active material, one or more conjugated carbon-sulphur cpds of formula (IIIa) which don't involve the forming and breaking S-S bonds in the polymer backbone, a polymer electrolyte for transporting ions and conducting carbon for electron transport; and (C) a polymer electrolyte (IV) contg. Li or Na salt (IVa), which is chemically inert with respect to (II) and (III) and permits ion transport between them.    Also claimed are a method of forming a solid state rechargeable battery by: forming (II) pref. from one or more alkali(ne earth) metal or an intercalated carbon; forming (III) by coating a substrate with an effective amount of poly(carbon disulphide), and (IV) and conducting carbon, pref. acetylene black; and enclosing (IV) between (II) and (III); forming (III) as described above; and (III) comprising a cathode material of formula (CSx)n (IIIa), where x = 1.7 - 2.3 and n is pref. greater than 20.    USE/ADVANTAGE -   (I) is a rechargeable solid state electric current producing cell. (I) are inexpensive and have long cycle lives, high specific energy and current. They also have long shelf storage and low discharge rate. (IIIa) does not undergo polymerisation and depolymerisation during oxidation and reduction.