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AssigneeZeon Corporation
InventorsHideyuki Nishio, Hidenori Onishi, Yoshinori Fujii
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A composition for solid polymer electrolyte which comprises a polyether polymer and an electrolyte salt compound soluble in the polyether polymer; wherein said polyether polymer is either (1) a polyether polymer having a toluene insoluble content of not larger than 5 weight %, or (2) a polyether polymer having a Mooney viscosity of 3 to 190, which has been prepared by applying a shearing force under heated conditions using an extruder to a polyether polymer having a Mooney viscosity of 10 to 200 so that the Mooney viscosity is reduced by 5 or more. This composition exhibits good film-forming property, and gives a solid polymer electrolyte exhibiting good and uniform ionic conductivity, and having high mechanical strength and surface smoothness. The solid polymer electrolyte is suitable for batteries and capacitors, especially for a lithium ion secondary battery.
A composition for solid polymer electrolyte characterized by comprising a polyether polymer having a toluene insoluble content of not larger than 5% by weight, and an electrolyte salt compound soluble in the polyether polymer.
A composition for solid polymer electrolyte characterized by comprising a polyether polymer having a Mooney viscosity in the range of 3 to 190 and an electrolyte salt compound soluble in the polyether polymer;
A polyether polymer having a Mooney viscosity in the range of 3 to 190, which has been prepared by applying a shearing force under heated conditions using an extruder to a polyether polymer having a Mooney viscosity in the range of 10 to 200 so that the Mooney viscosity is reduced by 5 or more.
A process for producing a polyether polymer having a Mooney viscosity in the range of 3 to 190, characterized in that a shearing force is applied under heated conditions using an extruder to a polyether polymer having a Mooney viscosity in the range of 10 to 200 so that the Mooney viscosity is reduced by 5 or more.
Dependencies are inferred from the claim text.