NOVEL CROSS-LINKER FOR THE PREPARATION OF A NEW FAMILY OF SINGLE ION CONDUCTION POLYMERS FOR ELECTROCHEMICAL DEVICES AND SUCH POLYMERS
申请人:Belenos Clean Power Holding AG
公开号:US20160168086A1
公开(公告)日:2016-06-16
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.
一种特定的交联剂,一种碱金属双(苯乙烯磺酰)亚胺单体,用于合成非氟化和非PEO基础的单离子导电共聚物。这种共聚物符合作为固体聚合物电解质(SPE)使用的安全性和成本要求。由于其改善的安全性和不易燃性能,这些共聚物是碱金属离子电池中标准液态电解质的有希望的替代品。所描述的共聚物可以是聚乙烯磺酸盐或丙烯酸乙烯磺酸盐嵌段共聚物。优选的丙烯酸酯单体是甲基丙烯酸酯,优选的乙烯磺酸盐是苯乙烯磺酸盐。该共聚物通过乙烯磺酸盐和交联剂以及可选的丙烯酸酯的自由基聚合制备,特别是使用功能化的双(酰基)膦氧化物(BAPO)作为光引发剂的自由基光聚合。还描述了将这种共聚物用作锂离子电池中的固体聚合物电解质。