Q&A with ONE CTO Dr. Steven Kaye. There is a wide range of characteristics that describe the performance of any given battery chemistry: energy density, specific energy, specific power, discharge efficiency, self-discharge rate, cycle life, calendar life, and—not the least important—cost. Some types of Li-ion chemistries are really good in a few characteristics but fall… Read more »
Search Results Found For: "dendrite"
Are solid-state batteries always safer than Li-ion?
Many in the EV industry see solid-state batteries as the future, and one of the reasons is that the more stable solid electrolyte is expected to be safer than current liquid electrolytes. However, new research indicates that the picture may be more complex. A recent study led by the DOE’s Sandia National Laboratories, published in… Read more »
University of Michigan researchers predict 1,000 real-world cycles for their lithium-sulfur battery
Researchers at the University of Michigan have developed a lithium-sulfur battery which they estimate will be able to achieve 1,000 real-world cycles with fast charging. In an article published in Nature Communications, the researchers write: “Lithium-sulfur batteries have a high specific capacity, but lithium polysulfide (LPS) diffusion and lithium dendrite growth drastically reduce their cycle… Read more »
Startup Safe-Li to commercialize new battery separator tech that prevents thermal runaway
Pennsylvania-based venture capital firm Green Swan Partners (GSP) has reached an agreement with Skysong Innovations, the technology transfer arm of Arizona State University (ASU), granting GSP the exclusive option to finalize commercial rights to ASU’s fire-safe battery technologies. The technologies were invented by ASU Regents’ Professor Dr. Jerry Lin, who is also the Chief Scientist… Read more »
Li-S Energy and Janus Electric to develop lithium-sulfur cells for swappable battery packs
Australian battery specialists Li-S Energy and Janus Electric are working together to develop lithium-sulfur and/or lithium metal battery cells for Janus’s swappable battery packs. Janus Electric offers products for converting heavy diesel trucks to EVs, based on an exchangeable battery system. Li-S Energy’s lithium-sulfur cells feature a cathode made of sulfur, carbon, a nanomaterial called… Read more »
Funding round delivers $16 million for Sepion’s lithium metal batteries
California battery developer Sepion has received $16 million from investors, including international chemical firm Solvay. Sepion plans to use the funds to speed up the commercialization of lithium metal batteries for EVs. Solvay offers additives for the electrolytes in Li-ion cells. Sepion’s niche is lithium metal battery cells, which Solvay says feature high energy density… Read more »
ORNL scientists use electrochemical pulse to overcome contact impedance
Scientists at Oak Ridge National Laboratory have developed a scalable, low-cost method to improve the joining of materials in solid-state batteries. One of the challenges in manufacturing solid-state batteries is the difficulty of getting materials to properly join and remain stable during repeated cycles of charging and discharging. Scientists studying methods to overcome this contact… Read more »
New SES Li-metal battery reaches 107 Ah
Battery supplier SES has released Apollo, a 107 Ah Li-metal battery for EVs. The company also announced plans for its Shanghai Giga plant, a 300,000-square-foot facility that the company hopes will be capable of producing 1 GWh of batteries annually by 2023. SES has addressed the dendrite safety problem associated with Li-metal batteries by coating… Read more »
SK becomes third-largest shareholder of battery company SES
SK has invested an additional $35.9 million in SES (formerly SolidEnergy Systems), a developer of lithium-metal batteries. Coupled with its original $26.7 million investment in 2018, SK now becomes the third-largest shareholder of the battery company. SES, which launched in 2012 as an MIT research lab startup, is headquartered in Singapore, and operates labs and… Read more »
Ultra-high purity lithium salt, LiFSI, facilitates high performance in advanced battery technology
Sponsored by Arkema The lithium-ion battery market is demanding higher energy density, extended lifetime, and improved power performance. Arkema’s Battery Solutions address many of these demands. Advances in electrode materials are addressing energy density, while new electrolyte systems can significantly improve lifetime and power performance. LiFSI, in particular, is a good candidate to replace LiPF6,… Read more »