By using a polymer on the lithium interface in metal batteries, battery life is prolonged and recharge time reduced
Use of a polymer increases lithium battery life - technology short science news

Lithium batteries that run longer and charge faster can become a reality soon. Scientists have developed the next generation of such metal batteries by using a special polymer on the interface of the lithium metal. This material acts as a porous sponge that not only promotes ion transfer, but also stops deterioration of lithium, even when batteries are being charged fast. Scientists estimate that the life of lithium batteries can double this way, meaning less recharging of your mobile phone or increasing the autonomy of electric cars.

Read the full story: Penn State
Scientific publication: Nature Energy