Journal
NANO LETTERS
Volume 17, Issue 12, Pages 7372-7379Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b03119
Keywords
Lithium-ion battery; hybrid nanoparticle; energy storage; lithium titanium oxide
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Funding
- Hydro-Quebec
- Sony
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Lithium titanium oxide (Li4Ti5O12)-based cells are a very promising battery technology for ultrafast-charge discharge and long-cycle-life batteries. However, the surface reactivity of lithium titanium oxide in the presence of organic electrolytes continues to be a problem that may cause expansion of pouch cells. In this study, we report on the development of a simple and economical grafting method for forming hybrid polymer Li4Ti15O12 nanoparticles, whichcan be successfully applied in lithium-ion batteries. This method utilizes a low-cost and scalable hydrophobic polymer that is applicable in industrial processes. The hybrid materials demonstrated exceptional capability for preventing the degradation of cells in accelerated aging and operating over 150 cycles at 1C and 45 degrees C.
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