With the application and demand of new energy vehicles, large-scale energy storage and other emerging technologies, more and more attention has been paid to the electrode materials, electrolytes and diaphragms needed for the development of high-performance secondary batteries, but the importance of resource regeneration and recycling of lithium-ion batteries (LIBS) and next-generation rechargeable batteries for the sustainable development of the industry has been ignored. In view of the dual attributes of environmental hazards and resource-based value of decommissioned power batteries, the recycling of batteries should be considered in the development of battery system. However, for the coming trend of power battery decommissioning, the development of low-cost, high-efficiency and short process lithium-ion battery sustainable recovery technology is still facing severe challenges.
Wu Feng, academician team of School of materials, Beijing University of science and technology, has done a lot of innovative research work in battery recycling and recycling for many years. Recently, on the top international journal Chemical Reviews (impact factor 54.301), he published on-line "sustainable recycling technology for Li ion batteries and beyond: Challenges and future" In this paper, the sustainability of rechargeable battery (lithium-ion battery and next generation battery new system) is systematically and comprehensively discussed.
Figure 1 failure mechanism of rechargeable battery (left) and lithium ion battery recovery process flow (right)
From the perspective of sustainable development, the author analyzes and evaluates the market competitiveness of electric vehicles and traditional fuel vehicles, which are the main sources of decommissioned power batteries, from the perspectives of economy, environment, resources and policies, studies the failure mechanism of rechargeable batteries (discusses the failure causes and action mechanism of positive, negative, electrolyte and diaphragm) and battery recovery technology The internal connection of (material recovery and regeneration technology and material extraction and recovery technology are proposed from the traditional recovery technology innovation of pyrometallurgy and hydrometallurgy) (see Figure 1). The echelon utilization, recovery and regeneration and sustainable development of batteries are comprehensively evaluated from four perspectives of economic feasibility, environmental impact, technology and safety.
Based on the laws, regulations and policies of mandatory or guiding documents, this paper analyzes the battery recycling management modes in the United States, Germany, Japan and China, and studies the importance of battery life cycle management for the establishment of waste battery traceability management platform and the formulation of recycling policies. From the perspective of strategic resources and economic needs, the full life cycle assessment of rechargeable battery is analyzed in detail, and the 3R strategy (redesign, reuse, recycle) and 4H principle (high efficiency, high economic return, high environmental benefit, high safety) are put forward, pointing out the new challenges and development prospects of rechargeable battery sustainability in the future.
Figure 2 3R strategy and 4H principle of battery recycling
Dr. Fan Ersha is the first author, Professor Li is the co-author, Professor Chen Renjie and Academician Wu Feng are the corresponding authors. This paper and the team's main research work on battery recycling in recent two years are as follows:
1. Chem. Rev., 2020, DOI: 10.1021/acs.chemrev.9b00535 (if = "54.301," first author: Dr. Fan Ersha)
2. Green chem., 2019, DOI: doi: 10.1039/c9gc01350d (if = 9.405, first author: Dr. Lin Jiao)
3. ACS sustain. Chem. Eng. 2019, DOI: 10.1021/acssuschemeng.9b03054 (if = "6.970," first author: Dr. Fan Ersha)
4. Waste manage., 2019, DOI: 10.1016/j.wasman.2019.01.012 (if = "5.431," first author: Professor Li Li)
5. Chem. SOC. Rev., 2018, DOI: 10.1039/c8cs00297e (if = "40.443," cover article; first author: Dr. Zhang Xiaoxiao)
6. ACS sustain. Chem. Eng. 2018, DOI: 10.1021/acssuschemeng.8b02503 (if = "6.970," first author: Dr. Fan Ersha)
7. ACS sustain. Chem. Eng. 2018, DOI: 10.1021/acssuschemeng.7b04373 (if = "6.970," first author: Dr. Zhang Xiaoxiao)
8. Electro. Ener. Rev., 2018, DOI: 10.1007/s41918-018-0012-1 (first author: Professor Li Li)
The above research results are supported by the national key R & D plan, the National Natural Science Foundation, the outstanding young scientists plan of Beijing University of science and technology and the innovative talents support plan of Scientific Research Institute of Beijing University of science and technology.
This paper is from the academic network of Beijing University of Technology
In the past, the standardization work was recommended. The notice on the collection of participants of two group standards, including guidelines for performance evaluation of extended producer responsibility of power battery (Trial). The standardization work. The notice on the collection of integrators of the national standard working group on the recycling and utilization of used batteries The knowledge shop finally waits for you to come out of the League online classroom at position C, and the first broadcast is waiting for you to come to the pilot application work (the second round) about organizing the application for the pilot work of the first batch of lead-acid battery producer responsibility extension demonstration (the second round) about organizing the application for the pilot work of the first batch of power battery producer responsibility extension demonstration (the second round) about organizing the application for the pilot work of the first batch of power battery producer responsibility extension demonstration (the second round) How to write "good" patents? 20:00, April 21
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