U.S.: Experts Find Key to Boost Electric Vehicle Battery Energy Density

2024-10-31 12:03:20

Three top battery experts in the United States recently wrote that the widespread use of energy storage systems for electric vehicles and intelligent networks still requires breakthrough innovations in materials and chemistry, rather than small steps. It is possible to increase the energy density of lithium-ion batteries by 2-3 times. It is also possible to increase the energy density of lithium-ion batteries by 5 times or more. The key is to develop electrode materials with superior performance.

From information obtained by the Ministry of Science and Technology, May 31st, the magazine of the Royal Society of Chemicals published in the seventh issue of the United States three top battery experts Michael M. Thackeray (senior scientist of the electrochemical energy storage department of Argonne National Laboratory) , Christopher Wolverton (Professor of the Department of Materials Science at Northwestern University) and Eric Isaacs (Director of Argonne National Laboratory, Nanomaterials Specialist and Physicist) jointly published an article entitled "Electrical energy storage for transportation-approaching the limits of, and going beyond, The paper on lithium-ion batteries explains the development of chemical energy storage batteries and predicts the development prospects of lithium batteries.

In the conclusion of the paper, the author wrote: The widespread use of energy storage systems required for electric vehicles and intelligent networks still requires breakthrough innovations in materials and chemistry, rather than small-scale advances. It is possible to increase the energy density of lithium-ion batteries by 2-3 times. It is also possible to increase the energy density of lithium-ion batteries by 5 times or more. The key is to develop electrode materials with superior performance. The material is charged and discharged many times. In order to withstand large changes in volume and structure and simultaneously possess multiple functions, for example, when the oxygen cathode is reduced to lithium oxide (Li2O) upon discharge, a catalyst is provided to effectively break lithium oxide during charging. Between the chemical bonds (Li-O bonds). In addition, the stable, non-volatile, non-liquid electrolyte of the battery system, the electrochemical characteristics of stable operation over a wide voltage range, as well as safety and price, pose great challenges to scientists.

It is reported that this paper has been carefully read and seriously considered by many experts and scholars.

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