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The key to better cellphones and other rechargeable electronics may be in tiny "sandwiches" made of nanosheets. A team of engineers has focused on the lithium cycling of molybdenum disulfide, or MoS2, sheets, which has been described as a "sandwich" of one molybdenum atom between two sulfur atoms.
The team observed that molybdenum disulfide sheets store more than twice as much lithium — or charge — than bulk molybdenum disulfide reported in previous studies. The researchers also found that the high lithium capacity of these sheets does not last long and drops after five charging cycles.Image credit: Lamuel David and Gurpreet Singh, Mechanical Engineering, Kansas State University
