Is lithium a good negative electrode material for rechargeable batteries?

Lithium (Li) metal is widely recognized as a highly promising negative electrode material for next-generation high-energy-density rechargeable batteries due to its exceptional specific capacity (3860 mAh g −1), low electrochemical potential (−3.04 V vs. standard hydrogen electrode), and low density (0.534 g cm −3).

Can two-dimensional negative electrode materials be used in lithium-ion batteries?

CC-BY 4.0 . The pursuit of new and better battery materials has given rise to numerous studies of the possibilities to use two-dimensional negative electrode materials, such as MXenes, in lithium-ion batteries.

Should lithium battery electrodes be based on cathode and anode materials?

Anode materials cannot blindly pursue high capacity, and the synergy of cathode and anode can maximize the performance of the battery. Researchers should design lithium battery electrodes from the perspective of overall battery structural stability and high performance, and do not need to be limited to the current commercial cathode materials.

What is a lithium ion battery?

Lithium-ion batteries (LIBs) are generally constructed by lithium-including positive electrode materials, such as LiCoO 2 and lithium-free negative electrode materials, such as graphite.

Can graphene be used as a negative electrode material for lithium batteries?

Some unreduced functional groups and crystal defects can precisely increase the capacity of graphene as a negative electrode material for lithium batteries, so the method is widely used. As an energy storage material, graphene has certain limitations in practical applications.

Why do lithium batteries have a low insertion potential?

The lithium insertion potential of these negative electrode materials is low, which prevents lithium deposition effectively and makes the battery safer. At the same time, it has a lower discharge potential, which can enable the lithium battery to obtain a higher output voltage.