@article{a674483d5f1040f492126f7d3d555ee8,
title = "A new approach to both high safety and high performance of lithium-ion batteries",
abstract = "We present a novel concept to achieve high performance and high safety simultaneously by passivating a Li-ion cell and then self-heating before use. By adding a small amount of triallyl phosphate in conventional electrolytes, we show that resistances of the passivated cells can increase by ~5×, thereby ensuring high safety and thermal stability. High power before battery operation is delivered by self-heating to an elevated temperature such as 60°C within tens of seconds. The present approach of building a resistive cell with highly stable materials and then delivering high power on demand through rapid thermal stimulation leads to a revolutionary route to high safety when batteries are not in use and high battery performance upon operation.",
author = "Shanhai Ge and Yongjun Leng and Teng Liu and Longchamps, {Ryan S.} and Yang, {Xiao Guang} and Yue Gao and Daiwei Wang and Donghai Wang and Wang, {Chao Yang}",
note = "Funding Information: Funding: This work was partially supported by U.S. Department of Energy{\textquoteright}s Office of Energy Efficiency and Renewable Energy under award number DE-EE0008447. Author contributions: S.G. and C.-Y.W. developed the concept and wrote the manuscript. S.G. and R.S.L. designed and built the cells. S.G. built the test stand and carried out the performance characterization. T.L. carried out the nail penetration test. Y.L. performed the impedance analysis. Y.G. and Daiwei Wang carried out the XPS and SEM analysis. All authors contributed to development of the manuscript and to discussions as the project developed. Competing interests: The authors declare that they have no competing interests. Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials. Additional data related to this paper may be requested from the authors. Publisher Copyright: Copyright {\textcopyright} 2020 The Authors",
year = "2020",
doi = "10.1126/sciadv.aay7633",
language = "English (US)",
volume = "6",
journal = "Science advances",
issn = "2375-2548",
publisher = "American Association for the Advancement of Science",
number = "9",
}