Why is the development of lithium batteries so slow?

Lithium batteries are a new type of recyclable battery that is completely different from traditional energy storage batteries. Although they have been studied for many years, the technology is endless. There is no best, only the best. widely used in China. Lithium iron phosphate batteries are overseas ternary lithium batteries. Some people in China say lithium titanate batteries are good. In short, they are all in the development phase and each has its own advantages and disadvantages. heard that new energy storage batteries such as graphite-selenium batteries are also under intense development, so lithium batteries may be replaced soon.