Battelle Memorial Institute

Lifen Xiao

Jun Liu

Zimin Nie

Yuliang Cao

Jie Xiao

Zhenguo Yang

Wei Wang

Daiwon Choi

Gregory J Exarhos

Birgit Schwenzer

Composite materials containing sulfurized polymers and sulfur-containing particles can be used in lithium-sulfur energy storage devices as a positive electrode. The composite material exhibits relatively high capacity retention and high charge/discharge cycle stability. In one particular instance, the composite comprises a sulfurized polymer having chains that are cross-linked through sulfur bonds. The polymer provides a matrix in which sulfide and/or polysulfide intermediates formed during electrochemical charge-discharge processes of sulfur can be confined through chemical bonds and not mere physical confinement or sorption.

Polymer-sulfur composite materials for electrodes in Li-S energy storage devices

A crystalline nanowire and method of making a crystalline nanowire are disclosed. The method includes dissolving a first nitrate salt and a second nitrate salt in an acrylic acid aqueous solution. An initiator is added to the solution, which is then heated to form polyacrylatyes. The polyacrylates are dried and calcined. The nanowires show high reversible capacity, enhanced cycleability, and promising rate capability for a battery or capacitor.

Nanomaterials for sodium-ion batteries

Growing community of inventors

Wuhan, China

Lifen Xiao