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Electrides as Solid-State Ionic Conductors for Fluoride-Ion Batteries
Electrides as Solid-State Ionic Conductors for Fluoride-Ion Batteries
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152133
- ISBN
- 9798383688151
- DDC
- 541
- 서명/저자
- Electrides as Solid-State Ionic Conductors for Fluoride-Ion Batteries
- 발행사항
- [Sl] : The University of North Carolina at Chapel Hill, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 145 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-02, Section: B.
- 주기사항
- Advisor: Warren, Scott C.
- 학위논문주기
- Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2024.
- 초록/해제
- 요약Batteries are an essential aspect of creating a renewable energy landscape. The use of Li-ion batteries has become widespread in the past few decades, but the demand for rechargeable batteries for consumer goods, electric vehicles, and grid energy storage continues to rise. Alternate ion shuttle batteries, such as fluoride-ion batteries (FIBs) are particularly interesting due to large predicted capacities and the large window of electrochemical redox stability of the F- anion. However, few materials that can reversibly intercalate F- have been studied. Herein, we study electrides-materials with bare electrons located in distinct lattice sites-as potential FIB anodes.First, we experimentally investigate the concept of electron-anion exchange (EAX) in which one F- ion and one electride electron directly swap places within an electride framework. We then computationally predict and experimentally synthesize the first two-dimensional (2D) semiconducting electride Sc2C. We then explore the Y-S phase space, and discover a family of new electrides based on the YSx rocksalt phase. The most electron-rich of these phases, Y6S4, is a promising F- ion conductor due to its 2D percolating network of electron density and large interlayer spaces. Ab initio molecular dynamics (AIMD) simulations predict that the activation energy for F- diffusion through Y6S4 is less than 80 meV. We then sought to find a compatible FIB solid-state electrolyte (SSE) and thus performed a high-throughput search fluoride-containing materials. We selected and successfully synthesized ZnSnF6 as an ideal candidate for a FIB electrolyte.
- 일반주제명
- Physical chemistry
- 일반주제명
- Energy
- 일반주제명
- Materials science
- 일반주제명
- Chemistry
- 키워드
- Battery
- 키워드
- Electrides
- 키워드
- Intercalation
- 기타저자
- The University of North Carolina at Chapel Hill Chemistry
- 기본자료저록
- Dissertations Abstracts International. 86-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211152133
■006m o d
■007cr#unu||||||||
■020 ▼a9798383688151
■035 ▼a(MiAaPQ)AAI31483812
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a541
■1001 ▼aRadomsky, Rebecca C.
■24510▼aElectrides as Solid-State Ionic Conductors for Fluoride-Ion Batteries
■260 ▼a[Sl]▼bThe University of North Carolina at Chapel Hill▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a145 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-02, Section: B.
■500 ▼aAdvisor: Warren, Scott C.
■5021 ▼aThesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2024.
■520 ▼aBatteries are an essential aspect of creating a renewable energy landscape. The use of Li-ion batteries has become widespread in the past few decades, but the demand for rechargeable batteries for consumer goods, electric vehicles, and grid energy storage continues to rise. Alternate ion shuttle batteries, such as fluoride-ion batteries (FIBs) are particularly interesting due to large predicted capacities and the large window of electrochemical redox stability of the F- anion. However, few materials that can reversibly intercalate F- have been studied. Herein, we study electrides-materials with bare electrons located in distinct lattice sites-as potential FIB anodes.First, we experimentally investigate the concept of electron-anion exchange (EAX) in which one F- ion and one electride electron directly swap places within an electride framework. We then computationally predict and experimentally synthesize the first two-dimensional (2D) semiconducting electride Sc2C. We then explore the Y-S phase space, and discover a family of new electrides based on the YSx rocksalt phase. The most electron-rich of these phases, Y6S4, is a promising F- ion conductor due to its 2D percolating network of electron density and large interlayer spaces. Ab initio molecular dynamics (AIMD) simulations predict that the activation energy for F- diffusion through Y6S4 is less than 80 meV. We then sought to find a compatible FIB solid-state electrolyte (SSE) and thus performed a high-throughput search fluoride-containing materials. We selected and successfully synthesized ZnSnF6 as an ideal candidate for a FIB electrolyte.
■590 ▼aSchool code: 0153.
■650 4▼aPhysical chemistry
■650 4▼aEnergy
■650 4▼aMaterials science
■650 4▼aChemistry
■653 ▼aBattery
■653 ▼aElectrides
■653 ▼aSolid-state electrolyte
■653 ▼aIntercalation
■653 ▼aMaterials discovery
■690 ▼a0494
■690 ▼a0794
■690 ▼a0791
■690 ▼a0485
■71020▼aThe University of North Carolina at Chapel Hill▼bChemistry.
■7730 ▼tDissertations Abstracts International▼g86-02B.
■790 ▼a0153
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163089▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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