A new lithium-based electrolyte invented by Stanford University scientists could pave the way for the next generation of EVs. In a study published in Nature Energy, Stanford researchers demonstrated how their novel electrolyte design boosts the performance of lithium metal batteries. “Most electric cars run on lithium-ion batteries, which are rapidly approaching their theoretical limit… Read more »
Search Results Found For: "lithium metal"
Researchers make Ceramic-based flexible electrolyte sheets for lithium metal batteries
Researchers at Tokyo Metropolitan University have developed a new method to make ceramic-based flexible electrolyte sheets for lithium metal batteries. They combined a garnet-type ceramic, a polymer binder, and an ionic liquid, producing a quasi-solid-state sheet electrolyte. The synthesis is carried out at room temperature, requiring significantly less energy than existing high-temperature (>1,000° C) processes…. Read more »
New research suggests fluorine-based electrolyte enhances lithium metal battery stability
Scientists at the Ulsan National Institute for Science and Technology (UNIST), led by Professors Nam-Soon Choi and Sang Kyu Kwak, have developed a fluorine-based electrolyte for lithium metal batteries with Ni-rich NCM cathodes. According to their paper, published in Nano Energy, the electrolyte evenly formed a protective film on the negative and positive electrodes, increasing… Read more »
New study identifies main culprit behind lithium metal battery failure
A research team led by the University of California San Diego has discovered the root cause of why lithium metal batteries fail. The team found that bits of lithium metal deposits break off from the surface of the anode during discharging and are trapped as “dead” or inactive lithium that the battery can no longer… Read more »
Researchers create air-stable, waterproof wax coating for lithium metal anodes
Lithium metal is a promising new material for battery electrodes, thanks to its high specific capacity and low voltage, but safety issues caused by dendrite growth and instability in air caused by its high chemical activity limit its large-scale use as an electrode material. However, a simple and efficient solution could be on the way… Read more »
Carnegie Mellon researchers develop semi-liquid lithium metal anode to pair with solid ceramic electrolytes
Researchers from Carnegie Mellon University have developed a semi-liquid lithium metal-based anode that could lead to higher capacity and better safety than typical lithium metal-based batteries that use lithium foil as anodes. The research team published their findings in the June 2019 issue of Joule. “Incorporating a mewtallic lithium anode into lithium-ion batteries has the… Read more »
PolyPlus and SK Innovation to develop glass-protected lithium metal battery
PolyPlus, a Californian company that’s developing a rechargeable lithium metal battery with a conductive glass separator, has entered a development agreement with Korean energy and chemical company SK Innovation. The collaboration is focused on PolyPlus’s solid-state lithium anode laminate. The companies’ initial goal is to produce and test prototype cells to demonstrate increased volumetric and… Read more »
Carbon nanotubes help make lithium metal batteries more durable
Carbon nanotubes could make high-powered, fast-charging lithium metal batteries an alternative to lithium-ion batteries, according to new research from Rice University. In a paper published this month in the journal Advanced Materials, the researchers show how a carbon nanotube film can be used to keep batteries safe from dendrites, spear-like protrusions that naturally form on… Read more »
New insight into lithium metal plating could enable faster charging times
Ranges are getting longer, battery capacities are getting larger, and the pressure is on to find ways to make charging faster. Unfortunately, reducing charging time by increasing charging current can have a negative effect on battery lifetime and safety. One reason for this is a phenomenon called lithium plating. “The rate at which lithium ions… Read more »
Waterloo team develops low-cost approach to stabilize lithium metal anodes
Researchers at the University of Waterloo in Canada have developed a way to stabilize lithium metal electrodes by forming a single-ion-conducting and stable protective surface layer in vivo. In “An In Vivo Formed Solid Electrolyte Surface Layer Enables Stable Plating of Li Metal,” published in the journal Joule, Quan Pang, Xiao Liang and colleagues explain how they… Read more »