It can be used, but the price/performance ratio is too low and the security risks are relatively high.
The production cost of lithium batteries is high, production equipment is expensive, and labor costs account for about 40% of production costs. The price is about three times that of lead-acid batteries. The value for money brought by three times the price is not high, and it looks flashy. Additionally, the lithium battery is not recyclable. If it is used, you can only throw it away or find a place to bury it.
The most important problem is that lithium batteries pose fire and explosion hazards. In electric vehicles, the sealing conditions are not very good, and it is easy for humidity to cause poor contact, among other reasons. may cause safety risks. However, technical performances lithium batteries are constantly improving, and high safety materials are also used.