磷酸铁锂电池不同应用场景的生命周期评价

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Abstract In order to evaluate environmental impact of cascade utilization fromlithium iron phosphate (LFP) batteries,two utilization scenarios, direct utilization scenario and cascade utilization scenario, were set in this article. The environmental impact and contribution of each stage in both of utilization scenarios were analyzed based on life cycle assessment (LCA)methodology.With a life cycle of 800times, 1GWh LFP battery used in energy storage battery for the communication base station (CBS) was set as the function unit. The key points of environmental impact from the two utilization scenarios were the energy storage utilization stage, accounting for 58.25% and 64.03% of the total environmental impact respectively. The environmental impact from the manufacturing stage was also significant, accounting for 41.58% and 27.36%, respectively. The contribution to the total environmental loads from the recovery and regeneration stage was 0.18% and 0.14%, respectively. The environmental benefits fromthe lithium recycling were offset by the environmental loads fromthe additional resources and energy consumption initsrecycling process. The results from the comparing the environmental impactof the two utilization scenarios revealed that the cascade utilization scenario reduced the total environmental impact by9.03%, which is more environmentally friendly compared to the direct utilization scenario. Furthermore, the contribution structuresof the resource consumption, energy consumption and greenhouse gases emission in the two scenarios were analyzed. The results indicated that the manufacturing stage and the energy storage utilization stagecontributed significantly to these three indicators.

Key words： lithiumiron phosphate battery direct utilization scenario cascade utilization scenario communication base station energy storage life cycle assessment

Received: 20 September 2021

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X820.3

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	JIAZhi-jie
	GAO Feng
	DU Shi-wei
	SUN Bo-xue

Cite this article:

JIAZhi-jie,GAO Feng,DU Shi-wei等. Life cycle assessment of lithium iron phosphate battery in different utilization scenarios[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(4): 1975-1984.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I4/1975

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