Breakthrough in polymer battery technology

Can polymers improve the performance of lithium ion batteries?

Polymers play a crucial role in improving the performance of the ubiquitous lithium ion battery. But they will be even more important for the development of sustainable and versatile post-lithium battery technologies, in particular solid-state batteries.

Which polymers are used in the development of post-Li ion batteries?

(2) Thus, well-known polymers such as poly (vinylidene fluoride) (PVDF) binders and polyolefin porous separators are used to improve the electrochemical performance and stability of the batteries. Furthermore, functional polymers play an active and important role in the development of post-Li ion batteries.

Can biopolymers improve battery performance?

For this reason, the use of biopolymers and water-processable polymeric binders is increasingly investigated as a more sustainable solution. (15,16) However, the water processing of the cathodes usually leads to a worse battery performance.

How are all-polymer film batteries made?

The all-polymer film batteries can be efficiently made by sandwiching the membrane soaked with an electrolyte between prepared electrode films due to the simple construction of symmetric electrodes.

What is the electrochemical performance of all-polymer batteries?

The test was conducted in an argon (Ar) atmosphere. The electrochemical performances of all-polymer batteries were evaluated with coin cells. The mass loading of the electrodes was between 1.5–2.6 mg/cm 2, 70 wt% of which is active material. The diameter of disc electrodes is 12 mm.

How are all-polymer fibre batteries prepared?

The all-polymer fibre batteries can also be integrated and prepared by coating the slurry onto the conductive fibre substrate, wrapping the separator, twisting two electrode fibres, and sealing the electrode fibres in PTFE tubes filled with electrolyte (Fig. 5d).