Facing the “short legs” of electric vehicles with short cruising range and long charging time, Qian Liangguo, deputy secretary-general of the Power Supply Committee of the China Electronics Chamber of Commerce and an expert on lithium-ion batteries, pointed out in a special article a few days ago that China already has the ability to break through lithium-ion in a short period of time. Such as the technical foundation of the new battery pack application technology and the key technology bottleneck of battery energy storage power system integration, "but these technologies are scattered in the hands of universities, research institutes, and small and medium-sized enterprises, forming insurmountable barriers among enterprises. "How to break through the current "isolated, repeated and dispersed" pattern has become a major issue that urgently needs to be resolved in the field of electric vehicle power batteries.
The battery energy storage power system is a common key technology and common basic support industry for the energy saving and environmental protection industry, the new energy industry and the energy saving and new energy automobile industry (hereinafter referred to as the energy saving and new energy industry). Battery energy storage power supply technology has become the focus of competition between energy saving and new energy industries. Master the initiative in the battery energy storage power supply industry, and then master the initiative in the energy saving and new energy industry. Energy-saving and new energy vehicles are most likely to be promoted and applied first in lithium-ion batteries.
Considering the current status of battery pack application technology and battery energy storage power system integration technology, electric vehicles still do not have the basic conditions for large-scale promotion and industrialization before the technological bottleneck is broken.
Although the problem is manifested in the battery, the root of the problem lies in the fact that the battery group application technology and the battery energy storage power system integration technology cannot meet the requirements of new batteries such as lithium-ion. Battery group application technology and energy storage power system integration technology are the technical bottlenecks that restrict the development of energy saving and new energy industries, including energy saving and new energy vehicles. Breaking through new battery pack application technologies such as lithium-ion and key technologies for battery energy storage power system integration is a major issue to promote the development of energy-saving and new energy industries including energy-saving and new energy vehicles.