| abstract |
The present invention relates to a cable-type rechargeable battery containing a polymer electrolyte, which comprises: a first electrolyte layer having a weight ratio of 50:50 to 80:20, the first electrolyte layer containing a mixture of a first polymer and a first organic electrolyte solution; and a second electrolyte layer having a weight ratio of 20:80 to 50:50, the second electrolyte layer being disposed at one or more surfaces of the first electrolyte layer, and containing a mixture of a second polymer and a second organic electrolyte solution. A multilayer polymer electrolyte membrane of the present invention has excellent mechanical properties and ionic conductivity. Therefore, the cable-type rechargeable battery according to the present invention has excellent battery performance and flexibility, and is resistant to external impacts. |