An improved method for synthesis of lithium difluoro(oxalato)borate and effects of sulfolane on the electrochemical performances of lithium-ion batteries

Li, Shiyou; Zhao, Wei; Cui, Xiaoling; Zhao, Yangyu; Li, Bucheng; Zhang, Hongming; Li, Yongli; Li, Guixian; Ye, Xiushen; Luo, Yong

doi:10.1016/j.electacta.2013.01.011

Cited by 60 publications

(36 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…LiODFB was synthesized in our laboratory with an improved method [4], and the purity exceeded 99.5 %. EC and DEC as solvents were purchased from Chaoyang Yonghheng Chemical Co., Ltd, solvent ADN was purchased from Aladdin Industrial Corporation.…”

Section: Methodsmentioning

confidence: 99%

An adiponitrile additive electrolyte based on lithium difluoro (oxalate) borate for lithium batteries

Li¹,

Zhao²,

Chen³

2016

Proceedings of the 2016 5th International Conference on Environment, Materials, Chemistry and Power Electronics

Self Cite

View full text Add to dashboard Cite

Abstract. Adiponitrile (ADN) as a promising solvent is widely used in high-voltage system. However, its effect on the graphite is not so ideal, for the reason that thermal instability at low potential and lower lowest unoccupied molecular orbital (LUMO) energy (-0.02223 eV) of ADN result in the reduction decomposition preferentially. Lithium difluoro (oxalate) borate (LiODFB) and ethylene carbonate (EC) might remedy the defect resulting from ADN due to its good film forming property. Different contents of ADN have the influence on the electrochemical performance for mesophase carbon (MCMB) cells, it is largely related to the nature of the SEI film formed on the surface of anode material. Three electrolytes with suitable contents of ADN were chosen for investigation, LiODFB-based electrolyte with the ADN content of 20 % put up the best electrochemical performance.

show abstract

Section: Methodsmentioning

confidence: 99%

An adiponitrile additive electrolyte based on lithium difluoro (oxalate) borate for lithium batteries

Li¹,

Zhao²,

Chen³

2016

Proceedings of the 2016 5th International Conference on Environment, Materials, Chemistry and Power Electronics

Self Cite

View full text Add to dashboard Cite

show abstract

“…One of the significant problems with current LIBs is their poor stability to high temperatures and extended cycling [1][2][3][4]. LiMn 2 O 4 with a spinel structure has attracted significant interest as a cathode material because of its intrinsic advantages of low cost, high abundance, excellent safety and environmental compatibility [5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Compatibility of lithium difluoro(sulfato)borate-based electrolyte for LiMn2O4 cathode

Liu

et al. 2015

Applied Surface Science

Self Cite

View full text Add to dashboard Cite

“…1,4,23,24 LiDFOB is promising due to good solubility, thermal stability, passivation of the aluminum current collector, stable SEI formation, and potentially lower cost. While there have been a limited number of investigations of LiD-FOB as the conducting salt in the electrolyte, 4,16,25 there have been several reports of the use of LiDFOB and the related salts lithium bis(oxalato) borate (LiBOB) and lithium tetrafluoro(oxalato) phosphate (LiTFOP) as additives to LiPF 6 based electrolytes to form a more stable SEI. 1,14,23,[26][27][28][29][30] There have also been reports of the use of oxalate salts enabling the cycling of PC based electrolytes due to better SEI formation.…”

mentioning

confidence: 99%

“…The development of novel solvent systems has been more limited and frequently targeted toward specific problems such as high voltage cathodes, salt solubility, or reactivity issues. [16][17][18][19][20][21] The development of novel salts has encountered problems related to salt solubility and corrosion of the aluminum current collector on the cathode. 21,22 One of the more interesting and promising alternative salts is lithium difluoro(oxalato) borate (LiDFOB).…”

mentioning

confidence: 99%

Carbonate Free Electrolyte for Lithium Ion Batteries Containing γ-Butyrolactone and Methyl Butyrate

Lazar

Lucht

2015

J. Electrochem. Soc.

View full text Add to dashboard Cite

A novel carbonate free electrolyte, 1 M lithium difluoro(oxalato) borate (LiDFOB) in 1:1 gamma-butyrolactone (GBL)/methyl butyrate (MB), has been compared to a standard electrolyte, 1 M LiPF 6 in 1:1:1 EC/DMC/DEC, and a 1 M LiDFOB in 1:1:1 EC/DMC/DEC electrolyte. The conductivity of 1 M LiDFOB in GBL/MB is higher at low temperature, but slightly lower at higher temperature compared to the standard electrolyte. The 1 M LiDFOB in GBL/MB electrolyte has comparable cycling performance to the standard electrolyte, and better cycling performance than the 1 M LiDFOB in EC/DMC/DEC electrolyte. The reversible cycling performance suggests that the LiDFOB in GBL/MB electrolyte forms a stable anode solid electrolyte interface (SEI) in the presence of GBL. Ex-situ surface analysis of the extracted electrodes has been conducted via a combination of XPS, FTIR-ATR and SEM which suggests that the stable anode SEI results is primarily composed of reduction products of LiDFOB. The widespread implementation of electric vehicles (EVs) requires further improvements in lithium ion batteries.1-3 Some of the biggest challenges for lithium ion batteries in EVs are cost, low temperature performance and battery lifetime.2,3 Improvements in the electrolyte can assist in the resolution of each of these problems.1,4,5 Most commercial electrolytes are composed of LiPF 6 in a mixture of carbonate solvents.5 However, the high cost and poor thermal and hydrolytic stability of LiPF 6 is problematic for the electrolyte.6-8 In addition, ethylene carbonate (EC) is typically a required component of the electrolyte due to the role of EC in the formation of the solid electrolyte interphase (SEI) on the anode. 5,9-14 Since EC is a solid at room temperature, electrolytes containing EC frequently have poor performance at low temperature.15 Despite the shortcomings of LiPF 6 / EC based electrolytes, these formulations have proven very difficult to replace. While there have been significant efforts to develop novel electrolytes with superior performance to LiPF 6 in carbonates, there has been limited success. The development of novel solvent systems has been more limited and frequently targeted toward specific problems such as high voltage cathodes, salt solubility, or reactivity issues. [16][17][18][19][20][21] The development of novel salts has encountered problems related to salt solubility and corrosion of the aluminum current collector on the cathode. 21,22 One of the more interesting and promising alternative salts is lithium difluoro(oxalato) borate (LiDFOB). 1,4,23,24 LiDFOB is promising due to good solubility, thermal stability, passivation of the aluminum current collector, stable SEI formation, and potentially lower cost. While there have been a limited number of investigations of LiD-FOB as the conducting salt in the electrolyte, 4,16,25 there have been several reports of the use of LiDFOB and the related salts lithium bis(oxalato) borate (LiBOB) and lithium tetrafluoro(oxalato) phosphate (LiTFOP) as additives to LiPF 6 based electrolytes to form...

show abstract

An improved method for synthesis of lithium difluoro(oxalato)borate and effects of sulfolane on the electrochemical performances of lithium-ion batteries

Cited by 60 publications

References 19 publications

An adiponitrile additive electrolyte based on lithium difluoro (oxalate) borate for lithium batteries

An adiponitrile additive electrolyte based on lithium difluoro (oxalate) borate for lithium batteries

Compatibility of lithium difluoro(sulfato)borate-based electrolyte for LiMn2O4 cathode

Carbonate Free Electrolyte for Lithium Ion Batteries Containing γ-Butyrolactone and Methyl Butyrate

Contact Info

Product

Resources

About