The voltage rise will bring two biggest problems: safety and difficulty in the design of electrical components. However, DC is more dangerous than AC with the same voltage. Different countries have different laws and regulations. Generally, DC power less than or equal to 36V or 48V is considered as safe voltage, and over 60V voltage can cause harm to human body. In EU electrical regulations, products above 48V require additional electrical safety certification. Low pressure is recommended.

The birth of lithium batteries began with the discovery of "lithium". In 1817, Swedish chemist chemistry first extracted lithium from a mineral sample from a Swedish island. The name of lithium is inspired by the Greek stone and stone. Although it sounds "heavy", it is actually the lightest solid element known so far.

With the popularity of electric vehicles, batteries as a core component, their performance and durability have become the focus of attention of consumers and manufacturers. In the market, ternary lithium batteries and lithium iron phosphate batteries are the two mainstream lithium battery types, which differ in terms of durability, safety and cost. This paper will compare and analyze the durability of ternary lithium battery and lithium iron phosphate battery in detail.