Nickel-lithium accumulator
The nickel-lithium accumulator was developed at the Japanese National Institute of Advanced Industrial Science and Technology (AIST) in 2009 . At over 900 Wh / kg, this battery has an energy density that is around 3.5 times higher than the best conventional lithium-ion batteries to date .
Structure and properties
The nickel-lithium accumulator combines the best properties of nickel-metal hydride accumulators and lithium-ion accumulators and has therefore been the subject of intensive research for a long time. So far, success has been hampered by the different and incompatible requirements for electrolytes. An anhydrous organic electrolyte is required for lithium, since otherwise lithium reacts with water, releasing violent heat. Nickel or Ni (OH) 2, on the other hand, requires an aqueous electrolyte. With a newly developed glass ceramic membrane called LISICON, it became possible to provide the appropriate electrolyte for each electrode without the electrolytes mixing.
In a prototype, the cell voltage was 3.47 volts and the storage capacity was 264 Ah / kg. The energy density was thus 916 Wh / kg.
Individual evidence
- ^ N. Chambers: New Nickel-Lithium Battery Has "Ultrahigh" Energy Storage Capacity. from October 6, 2009.
literature
- Huiqiao Li, Yonggang Wang, Haitao Na, Haimei Liu and Haoshen Zhou: Rechargeable Ni-Li Battery Integrated Aqueous / Nonaqueous System. In: JACS 131, 2009, pp. 15098-15099 ( doi: 10.1021 / ja906529g ).
