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  4. Lithium battery ecological chain: the co...

Lithium battery ecological chain: the core of the future electric vehicle

In 2020, although the battery new energy industry is affected by factors such as the epidemic and the consumption environment, and enterprises in the industrial chain are moving forward with heavy burdens, under the general trend of global competition, continuous technological innovation has become the common choice of most domestic enterprises.

In terms of technology research and development, Yuan Chengyin believes that high-capacity ternary materials and artificial graphite are the current mainstream positive and negative materials for high-energy density batteries. Silicon-carbon materials, low-cobalt or cobalt-free cathode materials continue to develop, and high-nickel materials are still the main direction. The market for lithium iron phosphate in the low-cost field may continue to expand, and solid-state batteries may become an important development direction.

Zhang Jiujun, Academician of the National Academy of Engineering of Canada/Academician of the Royal Academy of Sciences of Canada/Dean of the Institute of Sustainable Energy of Shanghai University, analyzed that the further development of liquid and solid lithium batteries (including lithium ion batteries, lithium sulfur batteries and lithium air batteries) is the realization of electric vehicles. The necessary strategy for the 500Wh/Kg energy density target can further explore the feasibility of Li-CO2 batteries and anodeless Li batteries in achieving high energy density targets greater than 500Wh/Kg.


"Solid-state batteries designed based on solid electrolytes are currently a hot spot in the development of secondary batteries and are an effective way to solve the safety energy density of lithium (sodium) secondary batteries." Director/researcher, Energy Materials Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences /Doctoral supervisor Wen Zhaoyin said that through effective modification of electrolyte and interface, solid-state lithium batteries and solid-electrolyte sodium chloride batteries already have the basis for quantitative manufacturing.


Academician of the Chinese Academy of Sciences/University of Science and Technology of China and Professor Qian Yitai of Shandong University are more concerned about high-safety water-based secondary batteries. He believes that lithium-ion batteries have made significant progress in power batteries, but organic electrolytes have potential safety hazards. The application of electric bicycles and energy storage still needs further research. Water-based ion batteries are highly safe, and water-based metal oxide batteries can further increase energy density. Water-based zinc ion batteries are beneficial to inhibit the growth of dendrites and are expected to gradually replace lead-acid batteries.


In the post-epidemic era and post-subsidy era, China, as a major energy country, has increasingly clear signals for a green transition, and the development prospects of the battery new energy industry have become clearer. We believe that although the road ahead is full of challenges, the high-quality development of the battery new energy industry will also bring new opportunities. The business we are striving for together-the green energy business will eventually usher in vigorous vitality and sustainable development.

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