用于新能源汽车的锂离子动力电池研究进展

Competition Situation,Technology Trends and Enlightenment ofLithium-Ion Power Batteries in the Development ofNew Energy Vehicles

随着国内外新能源汽车产业的快速发展,作为核心部件的锂离子电池行业正在成为新的风口。本文列举了在锂电行业具有技术竞争优势的美国、日本、韩国、中国等国在锂离子动力电池方面的战略规划,分析了各国在技术路线上的差异。随后对锂电行业的发展趋势进行预测。研究发现,锂离子电池重点关注能量密度、成本、寿命;高镍多元材料将成为未来车用动力电池的主流正极材料体系;新体系固态锂离子电池将成为锂电行业新的研究方向。最后,从电池关键技术、市场发展、后续回收利用等三方面对我国锂电行业日后发展提出了几点建议。

The rapid development of new energy automobile industry home and abroad has created a huge market demand for lithium ion batteries,and the lithium ion battery industry is becoming a new outlet.This paper lists the strategic planning of lithium-ion power batteries in the development of new energy vehicles in the United States,Japan,South Korea,China and other countries with technological competitive advantages in the lithium battery industry,and analyzes the differences in the technical routes of countries.Subsequently,the development trend of the lithium battery industry is predicted.It is found that energy density,cost and life will become the focus of lithium-ion battery;positive electrode materials will continue to transition to multi-materials,especially high-nickel multi-materials will become the future vehicle power battery.The mainstream cathode material system;the new system solid-state lithium-ion battery has become a new research direction in the lithium battery industry.Finally,from the three key aspects of battery technology,market development,and subsequent recycling,we put forward some suggestions for the future development of China's lithium battery industry.