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 Si-negative electrodes increase the energy density of batteries?

In the context of ongoing research focused on high-Ni positive electrodes with over 90% nickel content, the application of Si-negative electrodes is imperative to increase the energy density of batteries.

What happens when a negative electrode is lithiated?

During the initial lithiation of the negative electrode, as Li ions are incorporated into the active material, the potential of the negative electrode decreases below 1 V (vs. Li/Li +) toward the reference electrode (Li metal), approaching 0 V in the later stages of the process.

How difficult is it to scale-up a lithium-ion electrode?

Additionally, most lab-scale processing protocols are difficult to scale-up. In fact, for thick and dense electrodes, the lithium-ion transport is limited, while mechanical damages such as cracking and delamination of the active material from the current collector are more pronounced .

Can lithium be a negative electrode for high-energy-density batteries?

Lithium (Li) metal shows promise as a negative electrode for high-energy-density batteries, but challenges like dendritic Li deposits and low Coulombic efficiency hinder its widespread large-scale adoption.

Can nibs be used as negative electrodes?

In the case of both LIBs and NIBs, there is still room for enhancing the energy density and rate performance of these batteries. So, the research of new materials is crucial. In order to achieve this in LIBs, high theoretical specific capacity materials, such as Si or P can be suitable candidates for negative electrodes.