With many advantages, such as high energy density, long cycle life, low self-discharge, no memory effect and environmental friendliness, lithium-ion batteries (LIBs) have been widely used in consumer electronics, such as smartphones, smart bracelets, digital cameras and laptops, with the strongest consumer demand. At the same time, it is promoted in the markets of pure electric, hybrid electric and extended-range electric vehicles, with the fastest market share growth. LIBs are also gaining momentum in large-scale energy storage applications, such as power grid peak regulation, household power distribution and communication base stations