What question did this study set out to answer?

Systematically evaluate and rank the performance effects of over 110 single and combined electrolyte additive formulations in NMC/graphite pouch cells.

January 1, 2014Journal of The Electrochemical Society

A Systematic Study of Electrolyte Additives in LiNi1/3Mn1/3Co1/3O2(NMC)/Graphite Pouch Cells

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Authors

DWDavid Yaohui WangDalhousie University JXJian XiaFujian Academy of Building Research (China)LMLin MaUniversity of North Carolina at Charlotte

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Implication

Experimental study reveals tailored electrolyte additive blends enhance stability and efficiency in NMC/graphite pouch cells, indicating optimal formulations for high-temperature cycling.

Key Points

Systematically evaluate and rank the performance effects of over 110 single and combined electrolyte additive formulations in NMC/graphite pouch cells.
Tested Li[Ni1/3Mn1/3Co1/3]O2 (NMC)/graphite pouch cells across more than 110 distinct additive sets.
Characterized cells using ultra-high precision charging (UHPC), electrochemical impedance spectroscopy (EIS), automated storage, gas evolution tracking, and 55°C cycling.
Applied a standardized 'Figure of Merit' ranking methodology to compare additive performance across multiple electrochemical properties.
Combining prop-1-ene-1,3 sultone (PES) or vinylene carbonate (VC) with methylene methane disulfonate (MMDS) and silyl-phosphates/phosphites (TTSP/TTSPi) substantially improved cell lifespan and coulombic efficiency.
The ternary mixture of 2% PES + 1% MMDS + 1% TTSPi produced optimal performance across all evaluated metrics, including low impedance, low gas generation, and superior long-term cycling at 55°C.

Cite This Study

Wang et al. (2014) studied this question.

synapsesocial.com/papers/6a71ff3f8031ec7bb1dd311f https://doi.org/10.1149/2.0511412jes

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Implication

Experimental study reveals tailored electrolyte additive blends enhance stability and efficiency in NMC/graphite pouch cells, indicating optimal formulations for high-temperature cycling.

A Systematic Study of Electrolyte Additives in LiNi1/3Mn1/3Co1/3O2(NMC)/Graphite Pouch Cells

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Implication

Key Points

Cite This Study

A Systematic Study of Electrolyte Additives in LiNi1/3Mn1/3Co1/3O2(NMC)/Graphite Pouch Cells

Discussion

Member takes

Implication

Key Points

Cite This Study

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