article thumbnail

Cornell spin-off lithium-sulfur battery company NOHMs to locate in Lexington, KY

Green Car Congress

Kentucky Governor Steve Beshear announced that start-up lithium-sulfur battery company NOHMs (Nano Organic Hybrid Materials) Technologies Inc. has selected to locate its research, manufacturing and product development facility for military, cell phone and electric vehicle lithium-ion batteries in Lexington. Source: NOHMs.

article thumbnail

GM researchers demonstrate hierarchical electrode architectures for high energy lithium-chalcogen rechargeable batteries

Green Car Congress

Lithium-chalcogen batteries—e.g., lithium-sulfur (Li-S) and lithium selenium (Li-Se) systems— are promising candidates for high energy electrical storage solution. Elemental sulfur (S) has a theoretical specific capacity of 1670 mAh/g, while Selenium (Se) has a theoretical specific capacity of 675 mAh/g.

Recharge 259
article thumbnail

Silica-based cathode enables long-life Li-S batteries

Green Car Congress

Scientists from the Daegu Gyeongbuk Institute of Science and Technology, Korea, have developed a novel silica-based cathode for lithiumsulfur batteries, thereby enabling the realization of batteries that can last for more than 2,000 charge/discharge cycles. However, carbon-based hosts cannot trap LiPS. —Prof Yu.

article thumbnail

Li-S Energy, Janus Electric to collaborate on Li-S and/or Li-metal cells for swappable prime mover packs

Green Car Congress

Australia-based Li-S Energy has entered into an agreement with Janus Electric to develop and to test lithium sulfur and/or lithium-metal battery cells to suit the requirements of the Janus Electric exchangeable prime mover battery packs.

article thumbnail

Graphene oxide-sulfur (GO-S) nanocomposite cathodes for high-capacity, stable cycling lithium sulfur batteries

Green Car Congress

A team from Lawrence Berkeley National Laboratory and Tsinghua University (China) have synthesized graphene oxide-sulfur (GO-S) nanocomposite cathodes and applied them in lithium/sulfur cells to show a high reversible capacity of 950-1400 mAh g -1 and stable cycling for more than 50 deep cycles at 0.1C (1C = 1675 mA g -1 ).

article thumbnail

Graphene sheet-sulfur/carbon composite cathode for higher performance Li-sulfur batteries

Green Car Congress

Vasant Kumar at the University of Cambridge and Professor Renjie Chen at the Beijing Institute of Technology has devised a three-dimensional hierarchical sandwich-type graphene sheet-sulfur/carbon (GS-S/C ZIF8-D ) composite to address performance-related issues in Lithium-sulfur batteries such as low efficiency and capacity degradation.

Carbon 218
article thumbnail

UT Dallas researchers use 2D MoS2 as protective layer for Li-metal anodes in Li-S batteries; extended cycle life

Green Car Congress

For a Li–S full-cell configuration, using the MoS 2 -coated Li as anode and a 3D carbon nanotube–sulfur cathode, they reported obtain a specific energy density of ~589?Wh?kg However, sulfur is a poor electrical conductor and can become unstable over just several charge-and-recharge cycles.

Dallas 207