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A novel cross-linker for the preparation of a new family of single ion conduction polymers for electrochemical devices and such polymers
A novel cross-linker for the preparation of a new family of single ion conduction polymers for electrochemical devices and such polymers
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机译:一种新颖的交联剂,用于制备用于电化学装置的新型单离子传导聚合物家族以及此类聚合物
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摘要
A specific cross-linker, an alkaline metal bis(styrenesulfonyl)imide monomer, is used in the synthesis of single ionic conductive copolymers that are non-fluorinated and non-PEO based. Such copolymers meet the security and costs requirements to be used as solid polymers electrolytes (SPE). They are promising alternatives to standard liquid electrolytes in alkaline metal-ion batteries because of their improved security and inflammability properties. The copolymers described are either polyvinylsulfonates or acrylate vinylsulfonate block-copolymers. Preferred acrylate monomers are methacrylates and preferred vinylsulfonates are styrene sulfonates. The copolymer is prepared by radical polymerization of the vinyl sulfonate and the cross-linker and optionally the acrylate, in particular radical photopolymerization using a functionalized bis(acyl)phosphane oxide (BAPO) as photoinitiator. Also described is the use of such copolymer as solid polymer electrolyte in a lithium ion battery. wherein M + is Li + or Na + .
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