High power lithium battery multifunctional

How to improve the energy density of lithium ion batteries?

In order to improve the energy density of lithium ion batteries, the use of high voltage cathodes and high-capacity anodes such as lithium anodes and silicon anodes is becoming a development trend, which puts forward new requirements for the separator.

What is a lithium-sulfur battery (LiSb)?

As one of the progressive versions of LiBs, the lithium-sulfur battery (LiSB) with affordable cost, plentiful reserves, environmental friendliness, and high theoretical specific energy of 2600 Wh kg −1, is regarded as one of the most promising energy-storage systems to replace the previous generations , , , , , .

Can a multi-layer structural separator extend the life of a lithium battery?

Huang et al. designed a multi-layer structural separator to prevent the “shuttle effect” of soluble polysulfides, and therefore extended the cycling life of battery [ 34 ]. The lithium metal anode and silicon anode have the problems of serious volume expansion, unstable SEI film and lithium dendrites.

Are high energy density lithium-ion batteries safe?

High energy density lithium-ion batteries (LIBs) adopting high-nickel layered oxide cathodes and silicon-based composite anodes always suffer from unsatisfied cycle life and poor safety performance, especially at elevated temperatures.

How do lithium ions and electrolyte anions affect nucleation and growth?

The nucleation and growth of lithium dendrites are closely related to the transport properties of lithium ions and electrolyte anions. As the transport path of lithium ions and electrolyte anions in the battery, the functionalization of separators has proven to be a more effective method to inhibit the formation of lithium dendrites.

How does a lithium ion battery separator affect electrochemical properties?

Although the separator is not involved in the electrochemical reaction of lithium ion batteries, it plays the roles of isolating the cathode/anode and uptaking the electrolyte for Li + ions transport, and therefore directly affects the safety and electrochemical properties of lithium ion batteries.