How to improve the energy density of lithium batteries?

Strategies such as improving the active material of the cathode, improving the specific capacity of the cathode/anode material, developing lithium metal anode/anode-free lithium batteries, using solid-state electrolytes and developing new energy storage systems have been used in the research of improving the energy density of lithium batteries.

What is a lithium battery?

As both Li-ion and Li-metal batteries utilize Li containing active materials and rely on redox chemistry associated with Li ion, we prefer the term of “lithium batteries” (LBs) to refer to both systems in the following context.

How sluggish is the development of battery technology?

Even the progress is sluggish, under the incentives of national governments, researches on the design of advanced materials, the fabrication of new electrodes, the optimization of battery engineering etc. have never been ceasing, trying to push the boundaries of energy density, power density, cycle life, cost and safety.

Which cathode material can raise the energy density of lithium-ion battery?

Among the above cathode materials, the sulfur-based cathode material can raise the energy density of lithium-ion battery to a new level, which is the most promising cathode material for the development of high-energy density lithium batteries in addition to high-voltage lithium cobaltate and high‑nickel cathode materials. 7.2. Lithium-air battery

Which advanced battery materials are made in China?

In this perspective, we present an overview of the research and development of advanced battery materials made in China, covering Li-ion batteries, Na-ion batteries, solid-state batteries and some promising types of Li-S, Li-O 2, Li-CO 2 batteries, all of which have been achieved remarkable progress.

Why do we need improved lithium batteries?

Improved lithium batteries are in high demand for consumer electronics and electric vehicles. In order to accurately evaluate new materials and components, battery cells need to be fabricated and tested in a controlled environment.