Characterisation of defects in porous silicon as an anode material using positron annihilation Doppler Broadening Spectroscopy

Here we present Positron Annihilation Doppler Broadening Spectroscopy (PADBS) as a powerful method to analyse the origin and development of defect processes in porous silicon structures as a result of alloying with lithium for the use in battery anode applications. Several prepared anodes were lithiated (discharged against Li⁺/Li)...

Electrolyte design for high-energy density Lithium-ion battery with pure Silicon anode

Silicon anodes can boost the energy density of lithium-ion batteries due to its high theoretical capacity up to ~3600 mAh/g. However, a challenge of the use of silicon anode is 300% swelling/shrink upon lithiation/delithiation, which is a major cause of battery failure. A lithium-ion battery with silicon anode requires the formation of a...