A tuned mix of type I and type II silicon clathrate suppresses anode expansion during charging while preserving capacity over repeated cycles.
Selective HF removal of type I silicon clathrate creates pores, raises type II content, and reduces charging expansion in Li-ion batteries.
Carbonized polymer and continuous carbon phases buffer silicon expansion, maintain electrical contact, and support self-standing battery electrodes.
A tuned type I/type II silicon clathrate ratio suppresses anode expansion during charging while preserving non-expansion regions over cycling.
Gas-phase electroreduction deposits silicon on porous anodes with precise control, boosting Li-ion capacity while limiting expansion and capacity loss.
Separated Si, SiX, and SnY phases buffer silicon expansion in lithium-ion anode powder, improving cycle life without sacrificing capacity.
Atomic-level carbon deposition in nano-silicon forms amorphous Si-C bonds that limit expansion and improve lithium battery anode cycling.
A carbonized polymer matrix supports expanding silicon particles, maintaining conductivity and enabling self-supported battery electrodes.
A carbonized polymer forms a conductive buffer around silicon particles, preserving contact during lithiation to improve cycle life and energy density.
Partial surface oxidation and acid washing remove by-products and preserve clathrate voids, helping silicon anodes limit charging expansion.
A porous carbon shell around a silicon core buffers expansion and improves conductivity, helping lithium-ion anodes keep high capacity with better cycling.
Sub-20 nm carbon pores confine amorphous silicon to reduce expansion mismatch, limiting anode cracks and extending lithium secondary battery life.
Resin screws replace welded joints in a fluororesin cleaning basket to prevent cracking, peeling, and polycrystalline silicon contamination.
Low-temperature inert drying keeps silicon kerf oxide layers thin, enabling lower-cost Li-Ion anodes with stable cycling.
A Si/SiOx core-shell powder limits silicon expansion and reactivity, reducing irreversible capacity loss and extending Li-Ion anode cycle life.
Preformed voids from Li extraction in a Li22Si5 precursor help active materials absorb charge-discharge expansion and improve stability.
A core-shell silicon/graphene anode suppresses silicon swelling and excess SEI formation to improve cycle stability in lithium secondary batteries.
Carbonized coffee grounds host nano-silicon in porous carbon to limit anode swelling and improve lithium battery efficiency, capacity, and life.
A pillar-like second particle helps porous silicon anodes preserve voids, limit charging expansion, and reduce restraining pressure in secondary batteries.
Internal crystalline oxide linked to surface pores helps silicon-carbon anodes improve Li-ion reaction speed and cycle stability.