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Search Results Found For: "dendrite"

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 »

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 »

University of Michigan researchers develop non-combustible, non-degrading ceramic electrolyte

Scientists at the University of Michigan have developed a solid-state electrolyte which they claim is non-combustible (which is good, because it’s heated to over 1,800° F during manufacturing!) and not vulnerable to dendrite formation due to a stabilizing ceramic layer. The electrolyte has special properties that allow for increased capacities and faster charging rates as well. Current… Read more »

ZAF to use $300,000 grant to increase production of nickel-zinc batteries

Nickel-zinc (NiZn) specialist ZAF Energy Systems has received $300,000, the first installment of a $600,000 investment from Missouri’s Department of Economic Development. With the new funding, ZAF will increase production capacity to meet the increasing demand for its NiZn batteries. The company claims that the batteries have double the storage capacity and triple the power… Read more »

Cambridge study reveals fast-charging potential of niobium tungsten oxides

Cambridge research has shed light on the potential of a previously ignored class of electrode material: niobium tungsten oxides. These compounds display several promising properties, including a lack of the dendrite formation which plagues graphite-based designs. They have a relatively large particle size and a structure that allows lithium ions to travel freely. This high transport rate can… Read more »

New solid polymer electrolyte doubles proton flow rate

Engineers from the University of Pennsylvania and the University of Florida have recently made a breakthrough in the development of solid polymer electrolytes (SPEs). Current liquid electrolytes require thick, heavy housings in order to prevent leaks and fires from punctures, increasing their bulk and weight. SPEs solve many of these problems, but until recently, they were… Read more »

Researchers achieve extended cycle life using molybdenum compound as protective anode layer in Li-S batteries

Researchers at The University of Texas at Dallas have used two-dimensional molybdenum disulfide (MoS2) as a protective layer for Li-metal anodes to greatly improve the performance of Li-S batteries. In “2D MoS2 as an efficient protective layer for lithium metal anodes in high-performance Li–S batteries,” published in Nature Nanotechnology , the researchers report that such a use of MoS2 results in… Read more »

NREL scientists discover new approach for magnesium-metal batteries

Scientists at the National Renewable Energy Laboratory (NREL) have pioneered a method that enables reversible chemistry of magnesium metal in noncorrosive carbonate-based electrolytes. The technology has several potential advantages over lithium-ion batteries, including higher energy density, improved stability and lower cost. Magnesium batteries can theoretically store almost twice as much energy per volume as lithium-ion… Read more »

New Li-ion battery sensor tech promises 5x faster charging

According to researchers at the University of Warwick (UK), a new testing technique they have developed shows that commercially available lithium-ion batteries can safely be charged up to five times faster than currently recommended. In a paper entitled “Understanding the limits of rapid charging using instrumented commercial 18650 high-energy Li-ion cells,” published in the journal Electrochimica… Read more »