Electroplating lithium battery shell

What is lithium electroplating?

Lithium electroplating is an electrochemically driven phase formation process in which new solid phases are formed at the direct contact interface of Li + and electrons, expressed as Li + (sol.) + e − → Li (s). Figure 2 shows different steps in the lithium electroplating process.

Can molten salt electroplate lithium ion battery cathode materials?

Materials synthesis often provides opportunities for innovation. We demonstrate a general low-temperature (260°C) molten salt electrodeposition approach to directly electroplate the important lithium-ion (Li-ion) battery cathode materials LiCoO 2, LiMn 2 O 4, and Al-doped LiCoO 2.

Are commercial lithium-ion batteries used for lithium plating?

(B) Commercial lithium-ion batteries cells that have been used for lithium plating studies in the literature. Several studies investigated lithium plating at lower charging rates (0.3 and 0.5 C-rate) and temperature ranges from (-20 °C to 40 °C).

Which battery cells are used for lithium plating?

In the literature, various battery cells are used for investigating lithium plating. Most of them use graphite as the anode and use different cathode materials, such as lithium nickel cobalt manganese oxide (NMC 111), lithium iron phosphate (LFP), and lithium cobalt oxide (LCO).

What is the role of battery shell in a lithium ion battery?

Among all cell components, the battery shell plays a key role to provide the mechanical integrity of the lithium-ion battery upon external mechanical loading. In the present study, target battery shells are extracted from commercially available 18,650 NCA (Nickel Cobalt Aluminum Oxide)/graphite cells.

How does lithium plating affect battery life?

Lithium plating reduces the battery life drastically and limits the fast-charging capability. In severe cases, lithium plating forms lithium dendrite, which penetrates the separator and causes internal short. Significant research efforts have been made over the last two decades to understand the lithium plating mechanisms.