Do cylindrical lithium batteries need needle coke

Why is needle coke a good anode material for lithium-ion batteries?

The rates and specific capacities of lithium-ion battery anodes are important factors used in evaluating the batteries. Needle coke is attracting attention as an anode material for lithium-ion batteries due to its high reaction rates, but its low specific capacity still remains a problem to be solved.

Which coke can be used as the anode of lithium ion batteries?

4. Conclusions Some cokes, e.g. needle coke (1900) and metal- lurgical coke (1900), can be used as the anode of lithium ion batteries. Graphitized coke (treated at more than 2800) can give a much better cell performance if the passive film is improved properly.

Does oxygen plasma treatment improve the electrochemical properties of needle Cokes-based lithium-ion batteries?

Oxygen plasma treatment enhanced needle cokes-based LIBs rate and specific capacities simply. High-rate capacities and specific capacities are important indicators for evaluating lithium-ion battery (LIB) anodes. To improve the electrochemical properties of needle coke-based anode materials, oxygen plasma treatment was used.

What is the capacity of needle coke?

Needle coke (1900 °C) and metallurgical coke (1900 °C) in particular give a capacity of over 200 mAh/g and a cyclic efficiency of nearly 100%, whereas poor performance is exhibited by those pretreated at higher or lower temperatures, e.g., petroleum cokes (500 °C, 2800 °C), pitch coke (500 °C) and needle coke (2800 °C).

Do Nf3 plasma treatments affect the electrochemical properties of needle Coke anodes?

The effects of the NF 3 plasma treatments on the electrochemical properties of the needle coke anodes were compared with those in prior studies of plasma treatments over carbon-based LIB anode materials, as shown in Table 4 , , , .

Can ozonation increase the capacity of a needle coke battery?

Needle coke-based lithium-ion batteries with oxygen introduced through ozone treatment showed capacity increases of up to 17.4% and retention rates of 64.25% at 5 C. Therefore, introducing oxygen functional groups into needle cokes through ozonation is a viable strategy for producing rapid and high-capacity anode materials.