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Next-Generation Solid-State Electrolytes: From Structure to Applications in Solid-State Batteries
Next-Generation Solid-State Electrolytes: From Structure to Applications in Solid-State Ba...
Next-Generation Solid-State Electrolytes: From Structure to Applications in Solid-State Batteries

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자료유형  
 학위논문 서양
최종처리일시  
20260202104848
ISBN  
9798288817441
DDC  
546.73
저자명  
Holmes, Sarah E.
서명/저자  
Next-Generation Solid-State Electrolytes: From Structure to Applications in Solid-State Batteries
발행사항  
[Sl] : Stanford University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
193 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
주기사항  
Advisor: Cui, Yi.
학위논문주기  
Thesis (Ph.D.)--Stanford University, 2025.
초록/해제  
요약As the world transitions away from using fossil fuels as the primary source of energy, we must develop better energy storage technologies including batteries to enable global utilization of renewable energy. Lithium-ion batteries (LIBs) have been the dominant type of battery for several decades, and considerable research is ongoing to develop new battery technologies with higher energy density and lower cost. One leading new technology is the solid-state battery (SSB), where the liquid electrolyte and polymer separator of the LIB are replaced by a solid-state electrolyte (SSE) that can conduct Li+ ions. SSBs offer potentially higher volumetric and gravimetric energy density, greater safety, and equivalent or superior lifespan compared to LIBs. However, substantially more research is required before SSBs can be commercialized on a broad scale and successfully rival LIBs in the market. Although the operative principals of LIBs and SSBs are similar, SSBs pose a variety of unique issues owing to the absence of liquid electrolyte. First, the ionic conductivities of most SSEs are lower than liquid electrolytes, which limits fast charging capabilities. Second, solid-solid contact at interfaces within the battery is inherently worse than liquid-solid contact, making it difficult to fully utilize the active material stored in the battery; furthermore, the resistances associated with the solid-solid interfaces lower the efficiency and power output of the battery. Third, the manufacturing of uniform solid-state electrolytes is an important objective since it is critical to have highly uniform, high-performing SSEs within the battery. These are three of the major topics surrounding solid-state batteries that researchers in academia and industry are working to understand. Solving these practical issues is critical to making SSB technology truly commercially viable. In this thesis, I cover these three topics -- the structure-ionic conductivity relationship, SSB interfaces, and scalable manufacturing of uniform SSB materials -- across three SSE classes -- sulfides, oxides, and polymers. First, I discuss two different lithium thioborate solid electrolytes, and although the building blocks of these electrolytes are similar, the structures and factors affecting their ionic conductivity are different. The relationship of structure with ionic conductivity is thoroughly investigated, and the electrolytes are cycled in practical, high-capacity batteries. Second, I discuss the scalable manufacturing of thin-film solid-state batteries using amorphous Li7La3Zr2O12 as the SSE and crystalline LiCoO2 as the cathode. Third, I discuss polymer-inorganic composite electrolytes using inexpensive additives (Li3N and LiOH) and the impact of the additive choice on the SSE-anode interface and cyclability. The scope of my research is important because for SSBs to reach their potential, we must be able to synthesize SSEs with sufficiently high ionic conductivity and interfacial stability, and this is only possible by studying and truly understanding SSE's structure and ion conduction mechanisms. Research such as what I present in this thesis will be critical to finding the optimal SSE and battery configuration that can enable the commercialization of SSBs.
일반주제명  
Boron
일반주제명  
Graphite
일반주제명  
Investigations
일반주제명  
Electrodes
일반주제명  
Grain boundaries
일반주제명  
Electric vehicles
일반주제명  
Chemistry
일반주제명  
Batteries
일반주제명  
Energy storage
일반주제명  
Energy consumption
일반주제명  
Lithium
일반주제명  
Polymers
일반주제명  
Electrolytes
일반주제명  
Additives
일반주제명  
Fossil fuels
일반주제명  
Carbon
일반주제명  
Electricity generation
일반주제명  
Conductivity
일반주제명  
Plating
일반주제명  
Energy
일반주제명  
Physical chemistry
키워드  
Solid-state batteries
키워드  
Solid-state electrolyte
기타저자  
Stanford University.
기본자료저록  
Dissertations Abstracts International. 87-02B.
전자적 위치 및 접속  
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MARC

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■020    ▼a9798288817441
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■035    ▼a(MiAaPQ)Stanfordcn212cx9122
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a546.73
■1001  ▼aHolmes,  Sarah  E.
■24510▼aNext-Generation  Solid-State  Electrolytes:  From  Structure  to  Applications  in  Solid-State  Batteries
■260    ▼a[Sl]▼bStanford  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a193  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-02,  Section:  B.
■500    ▼aAdvisor:  Cui,  Yi.
■5021  ▼aThesis  (Ph.D.)--Stanford  University,  2025.
■520    ▼aAs  the  world  transitions  away  from  using  fossil  fuels  as  the  primary  source  of  energy,  we  must  develop  better  energy  storage  technologies  including  batteries  to  enable  global  utilization  of  renewable  energy.  Lithium-ion  batteries  (LIBs)  have  been  the  dominant  type  of  battery  for  several  decades,  and  considerable  research  is  ongoing  to  develop  new  battery  technologies  with  higher  energy  density  and  lower  cost.  One  leading  new  technology  is  the  solid-state  battery  (SSB),  where  the  liquid  electrolyte  and  polymer  separator  of  the  LIB  are  replaced  by  a  solid-state  electrolyte  (SSE)  that  can  conduct  Li+  ions.  SSBs  offer  potentially  higher  volumetric  and  gravimetric  energy  density,  greater  safety,  and  equivalent  or  superior  lifespan  compared  to  LIBs.  However,  substantially  more  research  is  required  before  SSBs  can  be  commercialized  on  a  broad  scale  and  successfully  rival  LIBs  in  the  market.  Although  the  operative  principals  of  LIBs  and  SSBs  are  similar,  SSBs  pose  a  variety  of  unique  issues  owing  to  the  absence  of  liquid  electrolyte.  First,  the  ionic  conductivities  of  most  SSEs  are  lower  than  liquid  electrolytes,  which  limits  fast  charging  capabilities.  Second,  solid-solid  contact  at  interfaces  within  the  battery  is  inherently  worse  than  liquid-solid  contact,  making  it  difficult  to  fully  utilize  the  active  material  stored  in  the  battery;  furthermore,  the  resistances  associated  with  the  solid-solid  interfaces  lower  the  efficiency  and  power  output  of  the  battery.  Third,  the  manufacturing  of  uniform  solid-state  electrolytes  is  an  important  objective  since  it  is  critical  to  have  highly  uniform,  high-performing  SSEs  within  the  battery.  These  are  three  of  the  major  topics  surrounding  solid-state  batteries  that  researchers  in  academia  and  industry  are  working  to  understand.  Solving  these  practical  issues  is  critical  to  making  SSB  technology  truly  commercially  viable.  In  this  thesis,  I  cover  these  three  topics  --  the  structure-ionic  conductivity  relationship,  SSB  interfaces,  and  scalable  manufacturing  of  uniform  SSB  materials  --  across  three  SSE  classes  --  sulfides,  oxides,  and  polymers.  First,  I  discuss  two  different  lithium  thioborate  solid  electrolytes,  and  although  the  building  blocks  of  these  electrolytes  are  similar,  the  structures  and  factors  affecting  their  ionic  conductivity  are  different.  The  relationship  of  structure  with  ionic  conductivity  is  thoroughly  investigated,  and  the  electrolytes  are  cycled  in  practical,  high-capacity  batteries.  Second,  I  discuss  the  scalable  manufacturing  of  thin-film  solid-state  batteries  using  amorphous  Li7La3Zr2O12  as  the  SSE  and  crystalline  LiCoO2  as  the  cathode.  Third,  I  discuss  polymer-inorganic  composite  electrolytes  using  inexpensive  additives  (Li3N  and  LiOH)  and  the  impact  of  the  additive  choice  on  the  SSE-anode  interface  and  cyclability.  The  scope  of  my  research  is  important  because  for  SSBs  to  reach  their  potential,  we  must  be  able  to  synthesize  SSEs  with  sufficiently  high  ionic  conductivity  and  interfacial  stability,  and  this  is  only  possible  by  studying  and  truly  understanding  SSE's  structure  and  ion  conduction  mechanisms.  Research  such  as  what  I  present  in  this  thesis  will  be  critical  to  finding  the  optimal  SSE  and  battery  configuration  that  can  enable  the  commercialization  of  SSBs.
■590    ▼aSchool  code:  0212.
■650  4▼aBoron
■650  4▼aGraphite
■650  4▼aInvestigations
■650  4▼aElectrodes
■650  4▼aGrain  boundaries
■650  4▼aElectric  vehicles
■650  4▼aChemistry
■650  4▼aBatteries
■650  4▼aEnergy  storage
■650  4▼aEnergy  consumption
■650  4▼aLithium
■650  4▼aPolymers
■650  4▼aElectrolytes
■650  4▼aAdditives
■650  4▼aFossil  fuels
■650  4▼aCarbon
■650  4▼aElectricity  generation
■650  4▼aConductivity
■650  4▼aPlating
■650  4▼aEnergy
■650  4▼aPhysical  chemistry
■653    ▼aSolid-state  batteries
■653    ▼aSolid-state  electrolyte
■690    ▼a0485
■690    ▼a0494
■690    ▼a0791
■71020▼aStanford  University.
■7730  ▼tDissertations  Abstracts  International▼g87-02B.
■790    ▼a0212
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359200▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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