Researchers proved for the first time that when charging and discharging Li-ion battery electrode materials, high power can be produced by significantly reducing the charging and discharging time without reducing the particle size.
Methods that reduce the particle size of electrode materials have been used for fast charging and discharging of Li-ion batteries. However, reducing the particle size has a disadvantage of decreasing the volumetric energy density of the batteries.
Now, the research team has confirmed that if an intermediate phase in the phase transition is formed during the charging and discharging, high power generation and high energy density can co-exist with rapid charging and discharging without the need to reduce particle size, enabling the development of long-lasting Li-ion batteries.
