We present a cross-linked gel polymer electrolyte for lithium-ion polymer batteries that can be easily synthesised without any initiators. The gel polymer electrolyte has a high ionic conductivity comparable to a liquid electrolyte, as well as favourable interfacial characteristics between the electrodes and the electrolyte during cycling. The lithium-ion polymer batteries assembled with cross-linked gel polymer electrolyte exhibit improved capacity retention and good rate capability.
- Gel polymer electrolyte
- In-situ chemical cross-linking
- Interfacial characteristics
- Lithium-ion polymer battery