Tris(trimethylsilyl) Phosphite as an Efficient Electrolyte Additive for a High-Voltage Li-Rich Disordered Rocksalt Cathode

Mathieu Cogniard; Irina Profatilova; Mélanie Pichardo; Martin Vernière; Jean‐Frédéric Martin; Yohan Biecher; J. Colin

doi:10.1021/acsami.6c00566

May 6, 2026ACS Applied Materials & Interfaces

Tris(trimethylsilyl) Phosphite as an Efficient Electrolyte Additive for a High-Voltage Li-Rich Disordered Rocksalt Cathode

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Key Points

To explore the enhancement of high-voltage performance in lithium-rich electrodes through electrolyte additive engineering.
Investigated the effects of tris(trimethylsilyl) phosphite as an electrolyte additive
Evaluated performance improvements in disordered rocksalt (DRX) cathodes
Utilized electrochemical testing to measure outcomes
Significant performance improvements observed with the additive
High-voltage operation improved in the lithium-rich disordered rocksalt cathode
Enhanced cycling stability and capacity retention reported

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Implication

Demonstrates improved performance of high-voltage electrodes using an electrolyte additive in lithium batteries, suggesting new design strategies.

Abstract

. This work demonstrates that electrolyte engineering through rational additive design offers a simple yet scalable route to significantly improve the performance of high-voltage DRX positive electrodes.

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Cogniard et al. (2026) studied this question.

synapsesocial.com/papers/69fd7f65bfa21ec5bbf07e2c https://doi.org/10.1021/acsami.6c00566

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Tris(trimethylsilyl) Phosphite as an Efficient Electrolyte Additive for a High-Voltage Li-Rich Disordered Rocksalt Cathode

Key Points

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Implication

Abstract

Discussion

Cite This Study

Tris(trimethylsilyl) Phosphite as an Efficient Electrolyte Additive for a High-Voltage Li-Rich Disordered Rocksalt Cathode

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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