서브메뉴
검색
Lithium-Ion Battery Formation Modeling and Diagnostics
Lithium-Ion Battery Formation Modeling and Diagnostics
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152101
- ISBN
- 9798382739731
- DDC
- 621
- 저자명
- Weng, Andrew.
- 서명/저자
- Lithium-Ion Battery Formation Modeling and Diagnostics
- 발행사항
- [Sl] : University of Michigan, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 289 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
- 주기사항
- Advisor: Stefanopoulou, Anna.
- 학위논문주기
- Thesis (Ph.D.)--University of Michigan, 2024.
- 초록/해제
- 요약The world needs to transition to sustainable energy as quickly as possible. A cornerstone of this transition is a fully electrified transportation sector which will require the production of automotive-grade lithium-ion batteries at a massive scale. Among the many challenges of battery production, the battery formation step, the last step in battery manufacturing, is both paramount and problematic. It is paramount since all batteries undergo the formation process to build a resilient solid electrolyte interphase (SEI) and to screen for defects. It is problematic because the formation process is expensive to operate, is a major source of factory energy demand, requires larger factory footprints, and takes an order of magnitude longer than nearly every other manufacturing step. Despite the centrality of the formation process in battery manufacturing, steps taken to optimize formation protocols remain ad hoc in the absence of fundamental design principles and physical models. In this thesis, we develop models and methods to enable advances in battery formation protocol design, battery manufacturing process control, and battery lifetime prediction. The work begins by introducing a physics-based electrochemical model of the battery formation process which, for the first time, bridges the gap between the electrochemistry of SEI formation and full-cell performance metrics. We demonstrate that the model can predict emergent system properties such as SEI passivation and cell aging. Using the model, we also verified that faster formation protocols are achievable without compromising battery lifetime. Next, we take a data-driven approach to studying the battery formation process through the lens of scalable diagnostic features, or ``electrochemical fingerprints.'' We show that these diagnostic features can be used to improve battery manufacturing process control and for predicting the impact of formation protocols on battery lifetime immediately after manufacturing. However, great care is needed to ensure reproducible data collection. Finally, the thesis ends by investigating the question of ``how much variability is too much,'' i.e. how much process control is really in battery manufacturing? We demonstrate that, when dissimilar battery cells are cycled in a parallel configuration, the degradation trajectory of individual cells may converge, suggesting that some amount of variability in cell properties at the beginning of life may be tolerated.
- 일반주제명
- Energy
- 일반주제명
- Chemical engineering
- 일반주제명
- Mechanical engineering
- 일반주제명
- Physical chemistry
- 키워드
- SEI growth
- 기타저자
- University of Michigan Mechanical Engineering
- 기본자료저록
- Dissertations Abstracts International. 85-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017162833
■00520250211152101
■006m o d
■007cr#unu||||||||
■020 ▼a9798382739731
■035 ▼a(MiAaPQ)AAI31349020
■035 ▼a(MiAaPQ)umichrackham005373
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a621
■1001 ▼aWeng, Andrew.
■24510▼aLithium-Ion Battery Formation Modeling and Diagnostics
■260 ▼a[Sl]▼bUniversity of Michigan▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a289 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-12, Section: B.
■500 ▼aAdvisor: Stefanopoulou, Anna.
■5021 ▼aThesis (Ph.D.)--University of Michigan, 2024.
■520 ▼aThe world needs to transition to sustainable energy as quickly as possible. A cornerstone of this transition is a fully electrified transportation sector which will require the production of automotive-grade lithium-ion batteries at a massive scale. Among the many challenges of battery production, the battery formation step, the last step in battery manufacturing, is both paramount and problematic. It is paramount since all batteries undergo the formation process to build a resilient solid electrolyte interphase (SEI) and to screen for defects. It is problematic because the formation process is expensive to operate, is a major source of factory energy demand, requires larger factory footprints, and takes an order of magnitude longer than nearly every other manufacturing step. Despite the centrality of the formation process in battery manufacturing, steps taken to optimize formation protocols remain ad hoc in the absence of fundamental design principles and physical models. In this thesis, we develop models and methods to enable advances in battery formation protocol design, battery manufacturing process control, and battery lifetime prediction. The work begins by introducing a physics-based electrochemical model of the battery formation process which, for the first time, bridges the gap between the electrochemistry of SEI formation and full-cell performance metrics. We demonstrate that the model can predict emergent system properties such as SEI passivation and cell aging. Using the model, we also verified that faster formation protocols are achievable without compromising battery lifetime. Next, we take a data-driven approach to studying the battery formation process through the lens of scalable diagnostic features, or ``electrochemical fingerprints.'' We show that these diagnostic features can be used to improve battery manufacturing process control and for predicting the impact of formation protocols on battery lifetime immediately after manufacturing. However, great care is needed to ensure reproducible data collection. Finally, the thesis ends by investigating the question of ``how much variability is too much,'' i.e. how much process control is really in battery manufacturing? We demonstrate that, when dissimilar battery cells are cycled in a parallel configuration, the degradation trajectory of individual cells may converge, suggesting that some amount of variability in cell properties at the beginning of life may be tolerated.
■590 ▼aSchool code: 0127.
■650 4▼aEnergy
■650 4▼aChemical engineering
■650 4▼aMechanical engineering
■650 4▼aPhysical chemistry
■653 ▼aBattery manufacturing
■653 ▼aElectrochemical modeling
■653 ▼aLithium-ion batteries
■653 ▼aBattery formation
■653 ▼aBattery lifetime prediction
■653 ▼aSEI growth
■690 ▼a0548
■690 ▼a0542
■690 ▼a0791
■690 ▼a0494
■71020▼aUniversity of Michigan▼bMechanical Engineering.
■7730 ▼tDissertations Abstracts International▼g85-12B.
■790 ▼a0127
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162833▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
Preview
Export
ChatGPT Discussion
AI Recommended Related Books
Подробнее информация.
- Бронирование
- не существует
- моя папка
- Первый запрос зрения
- Non-Book Loan Application
- Nighttime Book Loan Application
Available after logging in.


