Investigation of solvation in lithium ion battery electrolytes by NMR spectroscopy

By Li Yang, A. Xiao, B. Lucht. 2010

136 citations recorded by the source corpus.

Abstract The solvation of LiPF6 by carbonate solvents (EC, DMC, and DEC) was investigated via 13C NMR chemical shift and 1H NMR diffusion coefficient experiments. The gradual addition of LiPF6 into a ternary solvent mixture results in a larger change in the chemical shift of EC than DMC or DEC suggesting that EC binds Li+ more strongly than DEC or DMC. The self diffusion coefficient of the carbonate solvents provides additional support for EC binding Li+ more strongly than DEC or DMC. Variable temperature NMR spectroscopic investigations support an increase in EC binding at low temperature and an enthalpic preference for the binding of EC to Li+.

Subfields: Automotive Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/3f266ee2a2725d2b1c4f32af400a3b78259c3724

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Automotive Engineering

1. Christopher Hendricks
2. Michael G. Pecht
3. Nicholas Williard
4. Da Deng
5. Xiaosong Hu
6. Xianke Lin
7. Z. Ye
8. Simona Onori

In Electrical and Electronic Engineering

1. Michael G. Pecht
2. Da Deng
3. Christopher Hendricks
4. Sony Mathew
5. Nicholas Williard

Citations in the corpus

• A failure modes, mechanisms, and effects analysis (FMMEA) of lithium-ion batteries (2015, methodology): “NMR has been performed to detect metallic dendrites in lithium-ion cells [54].”
• Li‐ion batteries: basics, progress, and challenges (2015, background): “Generally, the EC can bind Li+ ions more strongly than DEC or DMC [130].”