Guiding lithium-ion flux to avoid cell's short circuit and extend cycle life for an anode-free lithium metal battery

Weldeyohannes, Haile Hisho; Abrha, Ljalem Hadush; Nikodimos, Yosef; Shitaw, Kassie Nigus; Hagos, Teklay Mezgebe; Huang, Chen‐Jui; Wang, Chia‐Hsin; Wu, She‐Huang; Su, Wei‐Nien; Hwang, Bing‐Joe

doi:10.1016/j.jpowsour.2021.230204

Cited by 31 publications

(19 citation statements)

References 43 publications

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“…Lithium metal batteries (LMBs) are considered to be the most promising next-generation energy storage systems because of their high energy density. , Electrolytes are vital components of LMBs, and traditional LMB electrolytes contain organic solvents. , However, some problems, including electrolyte leakage, low electrochemical stability, growth of Li dendrites, propagation of interfacial side reactions, and ignition and explosion of the organic solvent-based electrolytes, limit the application of LMBs. − The service life of LMBs is reduced due to the chemical reactions occurring during overcharge and overdischarge. − Replacing liquid-based electrolytes using solid polymer electrolytes (SPEs) is an effective strategy for overcoming these problems . LMBs fabricated using composite SPEs based on poly(ethylene oxide) (PEO) and alkali metal salts were first reported by Armand in 1979 .…”

Section: Introductionmentioning

confidence: 99%

PVDF-HFP-Based Composite Electrolyte Membranes having High Conductivity and Lithium-Ion Transference Number for Lithium Metal Batteries

Liu

Lin

et al. 2021

ACS Appl. Energy Mater.

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Lithium metal batteries (LMBs) with liquid-based electrolytes usually suffer from safety problems such as the growth of Li dendrites and the leakage and volatilization of organic solvents. Replacing liquid-based electrolytes using solid polymer electrolytes may resolve these problems. In this study, sulfonated polyvinylidene fluoride lithium-hexafluoropropylene (SPVDFLi-HFP), a single-ion conductive polymer, is synthesized from polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) and chlorosulfonic acid, and a series of LMBs are fabricated using SPVDFLi-HFPx/PVDF-HFP composite electrolyte membranes and characterized. The as-prepared SPVDFLi-HFPx/PVDF-HFP composite electrolyte membranes possess high conductivity (2.84 × 10 −4 S cm −1 ), a wide electrochemical window (5.4 V, vs Li/Li + ), and high interface compatibility with lithium metal anodes. Benefiting from the single-ion conductive nature of SPVDFLi-HFP, SPVDFLi-HFP50/PVDF-HFP exhibits a high lithium-ion transference number of 0.81. A solid-state LiFePO 4 |SPVDFLi-HFP50/ PVDF-HFP|Li battery exhibits an initial capacity of 147.9 mA h g −1 , a capacity retention of 89.1% at the end of 200 cycles, and an average Coulombic efficiency exceeding 99% at 0.2 C, demonstrating strong application potential in LMBs.

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Section: Introductionmentioning

confidence: 99%

PVDF-HFP-Based Composite Electrolyte Membranes having High Conductivity and Lithium-Ion Transference Number for Lithium Metal Batteries

Liu

Lin

et al. 2021

ACS Appl. Energy Mater.

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“…49 According to the fitting of the equivalent circuit in Fig. S16,† 10,50 the R SEI and R ct of BNQD-assisted electrode was 33.9 and 74.5 Ω, respectively, which was lower than 95.3 and 178.6 Ω of the bare Cu electrode. The higher impedance of the latter could be attributed to the large volume expansion of the “dead” Li layer and thickened SEI.…”

Section: Resultsmentioning

confidence: 97%

In situregulation of dendrite-free lithium anode by improved solid electrolyte interface with defect-rich boron nitride quantum dots

Xue

et al. 2022

J. Mater. Chem. A

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“… Ju et al (2020 ) made a biomacromolecule matrix by trifluoroethanol-modified natural eggshell membrane to control lithium growth and achieve an ultralong cycling life of over 1200 h at 5 mA/cm 2 . Weldeyohannes et al (2021 ) designed the gold sputter perforated polyimide film (PI@Au) as the anode current collector to guide the lithium plating/stripping with an average CE of 98.7%.…”

Section: Engineering Strategies For Anode Current Collectormentioning

confidence: 99%

Rational Engineering of Anode Current Collector for Dendrite-Free Lithium Deposition: Strategy, Application, and Perspective

Jia

Liu

et al. 2022

Front. Chem.

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Lithium metal anodes have attracted extensive attention due to their high theoretical capacity and low redox potential. However, low Coulombic efficiency, serious parasitic reaction, large volume change, and dendrite growth during cycling have hindered their practical application. The engineering of an anode current collector provides important advances to solve these problems, eliminate excess lithium usage, and substantially increase the energy density. In this review, we summarize the engineering strategies of an anode current collector with emphasis on different methods and applications in lithium metal-based systems. Finally, the perspectives and challenges of current collector engineering for lithium metal anode are discussed.

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Guiding lithium-ion flux to avoid cell's short circuit and extend cycle life for an anode-free lithium metal battery

Cited by 31 publications

References 43 publications

PVDF-HFP-Based Composite Electrolyte Membranes having High Conductivity and Lithium-Ion Transference Number for Lithium Metal Batteries

PVDF-HFP-Based Composite Electrolyte Membranes having High Conductivity and Lithium-Ion Transference Number for Lithium Metal Batteries

In situregulation of dendrite-free lithium anode by improved solid electrolyte interface with defect-rich boron nitride quantum dots

Rational Engineering of Anode Current Collector for Dendrite-Free Lithium Deposition: Strategy, Application, and Perspective

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