Long-life lithium-sulphur batteries
Nature Communications
2011년5월25일
A new cathode design which may lead to wider use of lithium-sulphur batteries is reported in Nature Communications this week.
Lithium-Sulphur (Li-S) cells are light-weight and have high energy densities, but their development has been impeded by cathode degradation caused by dissolution of intermediary polysulphide compounds into the electrolyte. Linda Nazar and co-workers now produce a cathode which consists of porous silica embedded within a carbon/sulphur composite. The silica acts as an internal reservoir for intermediary polysulphides, preventing their dissolution in the electrolyte, and leading to a more durable cathode.
More development will be required, but the technology could be applied broadly to Li-S cathodes and may in future lead to long-life Li-S batteries.
doi: 10.1038/ncomms1293
리서치 하이라이트
-
7월7일
Public health: Tackling adolescent stressNature
-
6월23일
Scientific community: Women credited less than men in scientific paper authorshipNature
-
5월12일
Geoscience: Monitoring earthquakes at the speed of lightNature
-
5월4일
Microbiology: Bacteriophage therapy helps treat multi-drug resistant infection in an immunocompromised patientNature Communications
-
4월27일
Planetary science: Building blocks of DNA detected in meteoritesNature Communications
-
4월8일
Health: Psilocybin use associated with lower risk of opioid addictionScientific Reports
