A new nanowire-based lithium hexaoxotungstate anode for lithium-ion batteries

Abstract

This study reports one dimensional lithium hexaoxotungstate (Li6WO6), with a diameter in the range of 200–500 nm, as a novel anode material for lithium-ion batteries.

Conversion Reaction in the Binder-Free Anode for Fast-Charging Li-Ion Batteries Based on WO3 Nanorods

“…These secondary lithium tungstate products (Li x WO y ) were also reported as active materials with high lithium-ion conductivities, as demonstrated in previous studies. , We, thus, concluded that the Li x WO y phases underwent conversion by the end of charging. The conversion energies of Li x WO y phases E (cv2) and E (cv3) were estimated as follows: Estimated values of E (cv2) and E (cv3) were 1.1 and 1.0 eV, and these implied the existence of the conversion potential lower than that of WO 3 . To observe lithiation in the WO 3 -NRs and experimentally prove the theoretically descripted charging mechanism, we performed an in situ TEM experiment.…”

“…These secondary lithium tungstate products (Li x WO y ) were also reported as active materials with high lithium-ion conductivities, 65 as demonstrated in previous studies. 66,67 We, thus, concluded that the Li x WO y phases underwent conversion by the end of charging. The conversion energies of Li x WO y phases E(cv2) and E(cv3) were estimated as follows:…”

Tunable electronic properties of silicon nanowires as sodium‐battery anodes

“…[1][2][3][4][5] Recently, the electronic properties of nanomaterials have been investigated to develop new alternative energy sources which are friendly with the environment, such as fuel cells, photocells; as well as energy storage devices (supercapacitors and batteries). 3,[6][7][8][9][10][11][12][13][14][15][16] Nowadays, one of the most efficient energy-storage devices are the lithium batteries, whose development started in parallel with the sodium ones in the 1970's. [17][18][19] Li and Na ions batteries are very similar, but the former have been incorporated in many electronic devices due to the lighter weight and smaller atomic radius of Li atoms in comparison with the Na ones.…”

Investigation of Li-rich manganese oxide spinel structures for electrochemical water oxidation catalysis

“…28 Since delithiation is the removal of a lithium ion and results in an increase in catalytic performance, no report on the presence of excess lithium for the water oxidation reaction is reported. 29 Inspired by recent work in the field of delithiated LiMn 2 O 4 prompted us to study Li-rich Li 4 Mn 5 O 12 based oxide for water oxidation activity. Li 4 Mn 5 O 12 is a Li-rich spinel where 1/6th of the Mn of LiMn 2 O 4 is replaced by Li.…”

“…28 Since delithiation is the removal of a lithium ion and results in an increase in catalytic performance, no report on the presence of excess lithium for the water oxidation reaction is reported. 29…”