Sony, the company that introduced the world’s first commercial lithium-ion battery in 1991, is already well along the road to a Li-ion replacement, according to Nikkei Technology. The company is reportedly developing high-capacity lithium-sulfur and magnesium-sulfur batteries, aiming for a 40% increase in volumetric capacity to 1,000 Wh/l, and plans to commercialize the new chemistries… Read more »
Search Results Found For: "dendrites"
Cambridge scientists claim promising lithium-oxygen battery advancements
Cambridge scientists have developed a working demonstrator of a lithium-oxygen battery that is more than 90% efficient, and can be recharged more than 2,000 times. Lithium-oxygen, or lithium-air, has been touted as the ultimate battery technology, because its theoretical energy density is ten times that of lithium-ion solutions. In “Cycling Li-O2 Batteries via LiOH Formation… Read more »
Another Chinese-backed startup announces plans for an electric supercar
New EV companies are cropping up like dendrites on a lithium metal anode. The latest startup to emerge from stealth mode is called NextEV. Like many of the current crop (see Faraday Future, Atieva, Fisker, Leshi), NextEV is backed by Chinese investors, and is not affiliated with a traditional automaker, although it has recruited execs… Read more »
Researchers add compounds to electrolyte to prevent dendrite growth
Those doggone dendrites are the bane of battery boffins working on otherwise promising lithium metal anodes. Now a group of researchers from SLAC, Stanford and MIT have discovered that adding lithium polysulfide and lithium nitrate to an ether-based electrolyte can prevent dendrite growth and minimize electrolyte decomposition. Professor Yi Cui, Professor Yet-Min Chiang (a co-founder… Read more »
Wildcat Discovery Technology creates new experiments to accelerate battery research
The pulse of the industry: Wildcat Discovery Technology is at the forefront of battery research, solving problems and accumulating insight. When Charged wants to catch up on the newest trends in cutting-edge battery technology, there are a few companies we turn to for insight. At the top of the list is a group whose high-speed… Read more »
Real-time images of lithium dendrite structures could lead to better batteries
Scientists at the DOE’s Oak Ridge National Laboratory have captured the first real-time nanoscale images of lithium dendrite structures in lithium-ion batteries. The ORNL team is confident that its research, published in Nano Letters, will be of great benefit to scientists who are experimenting with different ways to tackle the dendrite problem. Dendrites form when… Read more »
Researchers develop dendrite-free lithium films, an important step toward lithium metal anodes
There’s a lot of interest in using lithium metal as an anode material, because of its theoretical high capacity of 3,860 mAh g−1 (around ten times that of the graphite anodes used in typical Li-ion batteries). However, it doesn’t measure up in terms of cycle life and safety requirements, and one reason is the formation of… Read more »
Freudenberg Group’s new line of Li-ion battery separators
The separator is a critical component of a battery. It provides a barrier between the anode and the cathode while enabling the exchange of ionic charge carriers from one side to the other. For over 40 years, the Freudenberg Group has been producing separators for nickel-based batteries, such as the nickel-metal hydride (NiMH) cells widely… Read more »
A closer look at how batteries fail
A lot of research has been done to improve lithium-ion battery safety, cycle life and power output over a range of high and low temperatures, yet understanding the fundamental processes and degradation mechanisms in Li-ion batteries remains a challenge. To understand the degradation processes of lithium-ion batteries, it is important to understand how they operate…. Read more »
Stanford team develops stable lithium anode
Are the knights of nanotechnology closing in on the Grail at last? A team of researchers at Stanford University claim that they are, and have chronicled their deeds in the journal Nature Nanotechnology. The valiant engineers report that they have designed a pure lithium anode. “Of all the materials that one might use in an… Read more »