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SUSTAINABLE MANUFACTURING OF SILICON-BASED LITHIUM-ION BATTERIES FOR ENERGY STORAGE

Wang, Fenfen
http://rave.ohiolink.edu/etdc/view?acc_num=case1618870395161413

Abstract Details

, Doctor of Philosophy, Case Western Reserve University, EMC - Mechanical Engineering.
Lithium-ion batteries (LIBs) have been widely used in portable electronic devices, electric vehicles (EVs), and stationary energy storage due to their high energy and power densities and long cycle life. In recent years, silicon (Si) has attracted extensive attention and been recognized as one of the most promising anode candidates for next-generation LIBs due to its high theoretical specific capacity, i.e., 4200 mAh/g. Bulk Si material, however, suffers from a huge volume expansion (up to 400%) during Li lithiation/delithiation, which limits its practical applications in LIBs. Silicon nanowires (SiNWs) have been shown to mitigate effectively the volume expansion problem by providing free volumes for accommodating the Si expansion. Extensive efforts have been made to develop SiNWs using the metal-assisted chemical etching (MACE) method for LIBs with high capacity and long-cycling performance. But limited attention has been devoted to the environmental sustainability performance of Si-based LIB technologies with SiNWs, and aroused concerns are due mainly to the heavy use of chemicals and the generation of nanoparticle emissions during the synthesis of SiNWs. Furthermore, no study has been conducted to systematically investigate the environmental impacts of the MACE synthesis process for SiNWs. Therefore, this dissertation first focuses on the synthesis process for SiNWs and evaluates its environmental impacts, aiming to understand the environmental sustainability performance of the MACE process for SiNWs and to provide solid data support for environmental impact assessments of Si-based LIBs. Cradle-to-gate environmental impacts of a SiNW-based LIB are then investigated using the life cycle assessment (LCA) method for the purpose of supporting the sustainable development of Si-based LIBs in the future. Finally, to further reveal the application potential of SiNWs in next-generation LIBs for EVs, the configuration and manufacturing cost of a LIB pack with a SiNW anode are analyzed and compared with those of a conventional LIB pack with a graphite anode.
Chris Yuan (Advisor)
Fumiaki Takahashi (Committee Member)
Ya-Ting Liao (Committee Member)
Chung-Chiun Liu (Committee Member)
Mechanical Engineering

Recommended Citations

Citations

  • Wang, F. (n.d.). SUSTAINABLE MANUFACTURING OF SILICON-BASED LITHIUM-ION BATTERIES FOR ENERGY STORAGE [Doctoral dissertation, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1618870395161413

    APA Style (7th edition)

  • Wang, Fenfen. SUSTAINABLE MANUFACTURING OF SILICON-BASED LITHIUM-ION BATTERIES FOR ENERGY STORAGE. Case Western Reserve University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1618870395161413.

    MLA Style (8th edition)

  • Wang, Fenfen. "SUSTAINABLE MANUFACTURING OF SILICON-BASED LITHIUM-ION BATTERIES FOR ENERGY STORAGE." Doctoral dissertation, Case Western Reserve University. Accessed MAY 04, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=case1618870395161413

    Chicago Manual of Style (17th edition)

case1618870395161413
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This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.