Fluoroethylene carbonate as the additive of lithium difluoro(oxalate)borate–sulfolane electrolytes to improve the electrochemical performance of LiNi0.5Mn1.5O4 cathode

Zhou, Hongming; Liu, Bin; Xiao, Demin; Yin, Chengjie; Li, Jian

doi:10.1007/s10854-019-00808-0

Cited by 10 publications

(6 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1][2][3] However, only very few studies are available which describe indeed full cells which are cycled up to or above 5 V [4] or up to end of life (EOL; at least 80 % discharge capacity) [5] although often electrolytes are entitled as "5 V electrolytes". [1][2][3] However, only very few studies are available which describe indeed full cells which are cycled up to or above 5 V [4] or up to end of life (EOL; at least 80 % discharge capacity) [5] although often electrolytes are entitled as "5 V electrolytes".…”

Section: Introductionmentioning

confidence: 99%

“…In literature, various additives are mentioned which are able to significantly improve the cycle life, cycle performance and self-discharge. [1][2][3] However, only very few studies are available which describe indeed full cells which are cycled up to or above 5 V [4] or up to end of life (EOL; at least 80 % discharge capacity) [5] although often electrolytes are entitled as "5 V electrolytes". [5,6] One new strategy is a concept to introduce compounds which are able to release additional Li + ions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Additives for Cycle Life Improvement of High‐Voltage LNMO‐Based Li‐Ion Cells

et al. 2019

View full text Add to dashboard Cite

In this empirical study, five electrolyte additives, namely, lithium bis(oxalato) borate, lithium difluoro(oxalato) borate, 1-vinyl-1,2,4-triazole, 1-vinyl imidazole and dimethyl-2,5-dioxahexane dioate are described and compared regarding their effect in LNMO//graphite cells. The additives were selected from a preliminary study of 59 potential additives. The basis electrolyte mixture is DMC/EC + 1 M LiPF 6 (LP30) for all cells. All additives are able to enhance the cycle life at room temperature and at elevated temperatures (50°C) significantly compared to the non-additive electrolyte blend (basis electrolyte). The cell enhancement is discussed based on the solid-electrolyte interface (SEI) and metal-ion content on anode side. The aim of the study is to suggest promising already known as well as new additives that are able to overcome the issue of rapid capacity fading of LNMO-based cells when the cells are cycled up to 4.8-5.0 V vs. Li/Li + , especially at higher temperatures.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Additives for Cycle Life Improvement of High‐Voltage LNMO‐Based Li‐Ion Cells

et al. 2019

View full text Add to dashboard Cite

show abstract

“…This emphasizes the importance of increased ionic conductivity and, to a lesser degree, the cathode electrolyte interphase (CEI) layer, which EC-based electrolytes appear to be superior in, whereas SL-based electrolytes rely on the inclusion of additives for interfacial stability in most studies. 48,55,56 The (i) lower dissociation degree of LiBOB (0.65), compared to LiPF 6 (0.7), and high viscosity of SL result in a low Li + diffusion coefficient of the cathodes, hence lowering the rate capability of the cells. The rate of Li + intercalation/de-intercalation during charge/discharge is inuenced by Li + transport at electrode/ electrolyte interphase.…”

Section: Discussionmentioning

confidence: 99%

The role of ethylene carbonate (EC) and tetramethylene sulfone (SL) in the dissolution of transition metals from lithium-ion cathodes

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Sulfone-Based Electrolytes. Recently, sulfone-based electrolyte solvents have been employed for LIBs due to their high dielectric constants (>40) and superior oxidation potentials (>5.5 V (vs Li + /Li)), [50][51][52]54 leading to good compatibility between the electrolyte and the LNMO cathode. 7 Li et al 53 reported enhanced cycling performance of LIBs by using a sulfolane (SL)/DMC cosolvent based electrolyte, which delivered a high anodic potential of above 5.0 V (vs Li + /Li) according to the resulting LSV curve.…”

Section: Recent Progress On Electrolyte Optimization In Lnmo Based Libsmentioning

confidence: 99%

Electrolyte Therapy for Improving the Performance of LiNi_0.5Mn_1.5O₄ Cathodes Assembled Lithium–Ion Batteries

Zou

Zhang

et al. 2020

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

High voltage spinel manganese oxide LiNi0.5Mn1.5O4 (LNMO) cathodes are promising for practical applications owing to several strengths including high working voltages, excellent operating safety, low costs, and so on. However, LNMO-based lithium–ion batteries (LIBs) fade rapidly mainly owing to unqualified electrolytes, hence becoming a big obstacle toward practical applications. To tackle this roadblock, substantial progress has been made thus far, and yet challenges still remain, while rare reviews have systematically discussed the status quo and future development of electrolyte optimization coupling with LNMO cathodes. Here, we discuss cycling degradation mechanisms at the cathode/electrolyte interface and ideal requirements of electrolytes for LNMO cathode-equipped LIBs, as well as review the recent advance of electrolyte optimization for LNMO cathode-equipped LIBs in detail. And then, the perspectives regarding the future research opportunities in developing state-of-the-art electrolytes are also presented. The authors hope to shed light on the rational optimization of advanced organic electrolytes in order to boost the large-scale practical applications of high voltage LNMO cathode-based LIBs.

show abstract

Fluoroethylene carbonate as the additive of lithium difluoro(oxalate)borate–sulfolane electrolytes to improve the electrochemical performance of LiNi0.5Mn1.5O4 cathode

Cited by 10 publications

References 39 publications

Additives for Cycle Life Improvement of High‐Voltage LNMO‐Based Li‐Ion Cells

Additives for Cycle Life Improvement of High‐Voltage LNMO‐Based Li‐Ion Cells

The role of ethylene carbonate (EC) and tetramethylene sulfone (SL) in the dissolution of transition metals from lithium-ion cathodes

Electrolyte Therapy for Improving the Performance of LiNi_0.5Mn_1.5O₄ Cathodes Assembled Lithium–Ion Batteries

Contact Info

Product

Resources

About

Fluoroethylene carbonate as the additive of lithium difluoro(oxalate)borate–sulfolane electrolytes to improve the electrochemical performance of LiNi0.5Mn1.5O4 cathode

Cited by 10 publications

References 39 publications

Additives for Cycle Life Improvement of High‐Voltage LNMO‐Based Li‐Ion Cells

Additives for Cycle Life Improvement of High‐Voltage LNMO‐Based Li‐Ion Cells

The role of ethylene carbonate (EC) and tetramethylene sulfone (SL) in the dissolution of transition metals from lithium-ion cathodes

Electrolyte Therapy for Improving the Performance of LiNi0.5Mn1.5O4 Cathodes Assembled Lithium–Ion Batteries

Contact Info

Product

Resources

About

Electrolyte Therapy for Improving the Performance of LiNi_0.5Mn_1.5O₄ Cathodes Assembled Lithium–Ion Batteries