The initial application of lithium batteries was in digital products. After two decades of development, the application of lithium batteries in consumer electronics has become very mature. At the same time, with the development of global digital products, the application structure of lithium batteries in digital products has also undergone tremendous changes. In the early stage of the development of the global mobile phone industry, mobile phone batteries were mainly nickel-metal hydride batteries (Ni-MH). According to statistics. In 1998, 85% of mobile phone batteries were Ni-MH batteries. By 2002, Ni-MH batteries had basically withdrawn from the mobile phone battery supporting market, replaced by the monopoly of lithium batteries on the mobile phone battery market.
The way that lithium batteries charge capacitors with a small current realizes the use of primary batteries in disposable electronic cigarettes.