Flower-like Bi₂S₃ nanostructures as highly efficient anodes for all-solid-state lithium-ion batteries

Abstract

Bi2S3 with a hydride based solid electrolyte (LiBH4) was demonstrated to exhibit high capacity Li-storage for the first time. Nano Bi2S3 aids the better cyclic performance than commercially available bulk Bi2S3 with a very low capacity decay.

Implementation of Bismuth Chalcogenides as an Efficient Anode: A Journey from Conventional Liquid Electrolyte to an All-Solid-State Li-Ion Battery

“…The higher charging capacity was believed to be due to the same reason as mentioned above for the Bi 2 S 3 composite. The occurrence of this thermochemical reaction was also confirmed by the noise in the cyclic voltammetry results [61]. This thermochemical reaction hurdled the cycling and the cell stopped working after 10-15 cycles due to the loss of connectivity.…”

“…However, it suffered from poor stability due to the reduction of LiBH 4 through the reaction with Bi 2 O 3 . Later, to avoid the contribution of oxide in the anode performance, bulk Bi 2 Te 3 , Bi 2 Se 3 , and Bi 2 S 3 were investigated as anode materials [61,62,95,96]. In these works, LiBH 4 was used as a solid-state electrolyte.…”

“…This implied that no reaction occurred between Bi 2 X 3 and LiBH 4 during milling except the case for Bi 2 S 3 . In the case of the Bi 2 S 3 /LiBH 4 /AB composite, a mechanochemical reaction occurred during milling as well as heating at 120 • C, which converted the initial composite to Li 2 S and Bi phases [61].…”

“…Previously [61,62,95,96], it was proposed that the long charging plateau around 1.7 V was due to the conversion reaction of Li 2 X to X and the simultaneous thermochemical reaction between freshly formed X and LiBH 4 presented in the anode layer. This reaction proceeded until LiBH 4 completely reacted with X materials, which provided excess Li ions.…”

Enhancement of the electrochemical performance of lithium-ion batteries by SiO2@poly(2-acrylamido-2-methylpropanesulfonic acid) nanosphere addition into a polypropylene membrane

“…Generally, the smaller the contact angle of the membrane, the higher the electrolyte uptake. [39][40][41][42] As shown in Fig. 4a, the electrolyte uptake was as high as 137.21% for SiO 2 @PAMPS/PP- 18%, much higher than the 71.01% for the pristine PP membrane.…”