On April 12, 2004, the new technology for lithium-ion secondary battery of liquid-metal packaging for aluminum-plastic film packaging developed by CITIC Guoan Mengguli Power Technology Co., Ltd. and Peking University passed the results appraisal organized by the Beijing Science and Technology Commission in Beijing. .
Aluminum-plastic packaging liquid-powered lithium-ion secondary battery is a new environmentally friendly battery with high energy density and high working voltage. It can not only be used as a power source for vehicles, but also can be designed as multiple batteries in parallel or in series according to application requirements. Connect battery packs of different capacity and power to meet the needs of various mobile or placement power supplies. According to reports, compared with the authoritative organizations, the mass ratio of aluminum-plastic film packaging lithium batteries is comparable to that of polymer lithium-ion batteries, which is nearly 1.5 times higher than that of steel-shell batteries. The rate discharge is consistent with steel-shell batteries and is superior to polymer batteries. The results of the acupuncture test show that the safety performance is close to that of the polymer battery and superior to the steel shell battery. Relative to the hard shell (steel shell, hard plastic shell) battery, the battery has the advantages of light weight, small size, high energy density, good safety performance, simple production process, low cost, easy to change the shape and other advantages.
Experts at the meeting believed that the research and development of the new technology of aluminum-plastic film packaging of liquid-power lithium-ion secondary batteries was the first of its kind at home and abroad. The application of this technology will play a positive role in the further development of China's lithium-ion battery industry.