Opportunities and challenges coexist   Benefiting from subsidy policies and years of market cultivation, the share of China's new energy vehicles in the world continues to increase. With the explosive growth of new energy vehicles, the sales of power batteries have also risen sharply.   In 2017, the scale of China's lithium battery market reached 135 billion yuan, and the output value of power batteries was 72.5 billion yuan. The output value of power batteries accounted for 54%, surpassing digital lithium batteries. Automobiles have become the largest area in the lithium battery consumption structure.     On January 8, 2019, the latest statistics of the "Power Battery Field Database" released by the Advanced Industry Research Institute (GGII) showed that in 2018, my country's new energy vehicle production was about 1.22 million, a year-on-year increase of 50%. About 56.98GWh, a year-on-year increase of 56%.   The rapid development of new energy vehicles and power battery installed capacity has also brought a new and important problem.   Connectors Unleash Potential   Power battery connectors, also known as power battery connectors, plugs and sockets, generally refer to devices that connect two active devices to transmit current. The function of the power battery connector is very simple: to build a communication bridge between the blocked or isolated circuits in the circuit, so that the current can flow and the circuit can realize the predetermined function. The form and structure of power battery connectors are ever-changing. With different application objects, power, and application environments, there are various types of connectors.   Under the general trend that the entire industry is striving to reduce weight and reduce costs, replacing copper steel plates with aluminum materials in every possible link is the easiest and most practical method to think of when designing power battery connectors.   The safe and reliable operation of the power battery connector is the core component to ensure the normal operation of the electric vehicle power system. The power battery connector is an indispensable part of the electric vehicle power system. The safety, reliability and environmental protection of the power battery connector are The main points of power battery connector design.   Since there are currently no national standards for power battery high-voltage connectors, most companies implement corporate standards or refer to the standards of other similar products, or directly borrow connectors used in other industries. Safety and interchangeability pose challenges.