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Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
Published on: February 1, 2016
Rechargeable Ni-Li battery integrated aqueous/nonaqueous system
Huiqiao Li1, Yonggang Wang, Haitao Na
1Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Umezono, 1-1-1, Tsukuba 305-8568, Japan.
Journal of the American Chemical Society
|October 7, 2009
Summary
Researchers developed a novel rechargeable nickel-lithium (Ni-Li) battery combining high energy density from Li-ion and Ni-MH technologies. This innovative battery design shows potential for significantly higher energy storage than current Li-ion batteries.
Area of Science:
- Electrochemistry
- Materials Science
- Energy Storage
Background:
- Traditional lithium-ion (Li-ion) and nickel-metal hydride (Ni-MH) batteries have limitations in energy density and performance.
- Integrating different battery chemistries offers a pathway to overcome existing technological barriers.
Purpose of the Study:
- To propose and investigate a novel rechargeable nickel-lithium (Ni-Li) battery system.
- To combine the advantages of Li-ion and Ni-MH batteries for enhanced energy storage.
- To explore the potential for ultrahigh theoretical energy density.
Main Methods:
- Fabrication of a prototype Ni-Li battery.
- Integration of nickel hydroxide cathode (aqueous electrolyte) and lithium metal anode (organic electrolyte) using a lithium ion superionic conductor (LISICON) film.
- Testing of cell voltage, capacity, and charge/discharge retention over 50 cycles.
Main Results:
- The Ni-Li battery achieved a cell voltage of 3.47 V and a capacity of 264 mAh/g.
- Demonstrated good capacity retention over 50 charge/discharge cycles.
- The system exhibits an ultrahigh theoretical energy density of 935 Wh/kg, double that of Li-ion batteries.
Conclusions:
- The developed Ni-Li battery system, utilizing a hybrid electrolyte and LISICON, presents a promising new avenue for energy storage.
- This hybrid approach offers a superior combination of electrode and electrolyte materials.
- The battery demonstrates potential for achieving both high energy density and high power density.
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