Binder compositions comprising styrenic block copolymers for rechargeable batteries

A binder composition for use in rechargeable batteries, the binder composition comprising:

• at least 20 wt. % of a block copolymer having any of a linear, radial, or branched structure, the block copolymer comprising:
• i) a monovinyl aromatic block,
• ii) a conjugated diene block, and
• iii) optionally a coupling agent residue,
• wherein the block copolymer has a residual unsaturation selected from:
• (a) 10 to 18 meq/g when the block copolymer is unhydrogenated;
• (b) 0.5 to 10 meq/g when the block copolymer is hydrogenated;
• or
• (c) 0.5 to 5 meq/g when the block copolymer is sulfonated;
• up to 70 wt. % of a tackifying agent selected from hydrocarbon resins, alkyd resins, rosin resins, rosin esters and combinations thereof;
• up to 40 wt. % of a plasticizer selected from vegetable oils, mineral oils, process oils, phthalates, and mixtures thereof.