INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Life Cycle Assessment of the Manufacturing Process of High Energy Density 18650-type Lithium-ion Batteries |
ZHENG Yongquan1, LIU Yaning1, WANG Guoguang2, ZHANG Wenkui1, YAN Yini1, DONG Jiangqun2, BAO Daxin2, XIA Yang1,*
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1 College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China 2 Hengdian Group DMEGC Magnetics Co., Ltd., Dongyang 322118, Zhejiang, China |
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Abstract Lithium-ion batteries with high energy density, long cycle life, remarkable cost effectivity and low environmental impact are widely applied in the fields of consumer electronics, large-scale energy storage and new energy electric vehicles, etc., which play important roles as a sort of clean energy to achieve the Carbon-peaking and Carbon-neutrality strategic goals. In this work, the manufacturing process of high energy density lithium-ion battery was briefly introduced for the life cycle assessment (LCA) of the 18650-type lithium-ion battery products by Simapro software. The LCA results indicate that the carbon footprint of a 18650-type lithium-ion battery with a production capacity of 1 kW·h is 48.3 kg CO2 eq, and the corresponding eco-indicator point is 12.7 Pt. The carcinogens and respirable inorganic substances produced in the production process will be hazardous to human health to a certain extent. The cathode preparation process and industrial electricity consumption are the main factors that lead to carbon emissions and affect the environment. The material's upstream production processes, such as the fabrication processes of layered oxide cathode materials (e.g. Li(Ni0.83Co0.06Mn0.11)O2), electrolytic copper foil collector and graphite anode materials, as well as lithium hexafluorophosphate electrolyte, are the main factors influencing the environment. From a comprehensive perspective, the manufacturing process of lithium-ion batteries needs to improve production efficiency further, save energy and resources, and reduce pollutant emissions, so as to coordinate with the environment and achieve the goal of sustainable development.
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Published: 10 November 2024
Online: 2024-11-11
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Fund:Science and Technology Department of Zhejiang Province (2022C01173). |
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