On November 12, American scientists discovered that adding single-walled carbon nanotubes to the nickel-cobalt-manganese cathode can increase the conductivity and higher rate capability of the entire battery. The research team said that this can open new doors for the design of high energy/power density electrodes.
Terminal new energy vehicles' demands for power batteries are mainly in three aspects: energy density, cycle life, and safety performance. The current industry has carried out a series of lithium battery innovations around these three goals.
According to industry insiders, the application of lithium batteries is limited because they cannot meet the requirements for high power output and reversible energy storage. The main challenge is to develop an electrode system that can generate both high energy and power. As one of the key components, conductive fillers play a vital role in battery electrodes, helping to form conductivity and shaping the electrode structure, thereby significantly determining the rate capability.
This study found that single-walled carbon nanotubes (SWCNT) proved to be the best performing additives. Although graphene nanosheets have similar effects, the resulting structure is not uniform.