Strontium nitrate (cas 10042-76-9) as a stable and potential anode material for lithium ion batteries

Add time:07/13/2019    Source:sciencedirect.com

A novel anode candidate, Sr(NO3)2, has been studied as a potential host material in lithium-ion batteries. The phase composition, particle morphology and lithium storage capability of Sr(NO3)2 have been thoroughly investigated. Sr(NO3)2,could maintain its reversible charge capacity at 237.3 mA h g−1 along with a high capacity retention of 99.08% at 50 mA g−1. Furthermore, it shows excellent cycling stability even at higher current density. Cycled at 500 mA g−1, it can deliver an initial charge capacity of 103.0 mA h g−1 kept at 100.9 mA h g−1 after 500 cycles. Compared with other nitrates that have been reported before, Sr(NO3)2 proved to have a better capacity retention capability at low and high rates. The high stable electrochemical performance can be ascribed to the absence of crystal water in its structure. Most importantly, commercial Sr(NO3)2 in this work just needs to be ground uniformly before its use as anode material and does not need complicated pretreatment like doping, carbon coating, calcination or nanocrystallization.

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