Nanocasting synthesis of ordered mesoporous crystalline WSe2 as anode material for Li-ion batteries

Colloidal WSe2 nanocrystals as anodes for lithium-ion batteries

“…[30][31][32] During charge, Li ions intercalate into WSe 2 forming intermediary Li x WSe 2 , which undergoes conversion, liberating lithium selenide with elemental tungsten embedded in the matrix. 15,29,33 Delithiation converts W and Li 2 Se into the intermediary Li x WSe 2 structure, from which Li ions deintercalated. Fig.…”

“…[9][10] To date, research into nanostructured WSe 2 anodes has been quite limited, with the best performing anodes realized by Chen and co-workers, reaching 530 mAh g -1 after 30 cycles. 15 Similarly, Yang et al demonstrated the highly stable performance of WSe 2 nanoplatelets, showing stable cycling of around 200 mAh g -1 over 1500 cycles. 9 It is worth mentioning that much of the reported work to date relies on preparation of TMDs from chemical vapor deposition (CVD) or hydrothermal reactions.…”

“…9 It is worth mentioning that much of the reported work to date relies on preparation of TMDs from chemical vapor deposition (CVD) or hydrothermal reactions. 15 The former approach requires high temperature and pressure which elevates the manufacturing cost, while the latter approach yields materials of low chemical stability, with poor crystallinity and structural defects.…”

Tungsten‐Based Materials for Lithium‐Ion Batteries

“…WSe 2 possesses a layered crystal structure similar with that of WS 2 and has also been studied as anode materials of LIBs . Its reaction mechanism is also similar to that of WS 2 .…”

“…When served as LIB anode, the voltage window of 0.01‐3.0 V is used for test. Chen et al synthesized an ordered mesoporous WSe 2 material with crystalline frameworks via a hard template method utilizing mesoporous silica SBA‐15 . The sample exhibited discharge capacities of 762 and 586 mA h g −1 at 0.1 C during the first two cycles.…”