Found this article interesting and thought others might find want a read. Tech to improve battery safety and performance.New salt could overcome safety issues in high-performance li-ion batteries
MINING.COM Staff Writer | August 18, 2021 | 6:06 am Battery Metals Australia LithiumResearchers a Monash University in Australia joined forces with industrial solutions developer Calix Ltd to create a new chemistry that overcomes the safety and performance issues that are hindering progress when it comes to higher power batteries for energy storage and vehicle applications.
In a paper published in the journal Advanced Energy Materials, the researchers describe a novel lithium salt that, by replacing hexafluorophosphate salt, might overcome current challenges in electrolyte design.
At present, the lithium salt being used in Li-ion batteries is lithium hexafluorophosphate, which is toxic and poses fire and safety hazards. This risk is
partially mitigated in small portable devices precisely due to their size. However, the fire danger increases in large battery packs such as those used in
electric vehicles and outdoor grid-scale energy storage systems.“Higher voltage and power batteries are on the drawing board but cannot use the hexafluorophosphate salt,” Doug MacFarlane, one of the study’s
co-authors, said in a media statement.
Lithium hexafluorophosphate, which is currently used in li-ion batteries, is toxic and poses fire and safety hazards
To replace the commonly used salt, MacFarlane and his colleagues developed fluoroborate salts, which are safer because they are not affected, even
if exposed to air.To synthesize the new salts with battery-grade purity, the scientists carried out a recrystallization process.
According to Binayak Roy, co-author of the paper, when combined with a novel cathode material in a high voltage lithium battery, this electrolyte far
outperformed the conventional salt. Moreover, the salt was found to be very stable on aluminum current collectors at higher voltages, as required for
next-generation batteries.“When put in a lithium battery with lithium manganese oxide cathodes, the cell cycled for more than 1000 cycles even after atmospheric exposure, an
unimaginable feat compared to the hyper-sensitive hexafluorophosphate salt,” Roy said.These results are interpreted as being one step closer to making next-generation electrode materials a commercial reality, particularly when the
Monash team’s new electrolyte system is paired with Calix’s lithium manganese oxide electrode material.The near-future goal of the team is, thus, to turn these new anions into thermally stable, non-flammable liquid salts, making them beneficial for
batteries operating at high temperatures.
- Forums
- ASX - By Stock
- Compelling opportunity
Found this article interesting and thought others might find...
- There are more pages in this discussion • 3,190 more messages in this thread...
You’re viewing a single post only. To view the entire thread just sign in or Join Now (FREE)
Featured News
Add GLN (ASX) to my watchlist
(20min delay)
|
|||||
Last
28.5¢ |
Change
0.005(1.79%) |
Mkt cap ! $117.7M |
Open | High | Low | Value | Volume |
28.5¢ | 29.0¢ | 27.0¢ | $604.7K | 2.147M |
Buyers (Bids)
No. | Vol. | Price($) |
---|---|---|
3 | 118181 | 28.0¢ |
Sellers (Offers)
Price($) | Vol. | No. |
---|---|---|
28.5¢ | 23820 | 2 |
View Market Depth
No. | Vol. | Price($) |
---|---|---|
3 | 118181 | 0.280 |
8 | 265000 | 0.275 |
19 | 288835 | 0.270 |
10 | 904800 | 0.265 |
14 | 618255 | 0.260 |
Price($) | Vol. | No. |
---|---|---|
0.285 | 23820 | 2 |
0.290 | 60994 | 6 |
0.295 | 55000 | 2 |
0.300 | 206825 | 5 |
0.305 | 18620 | 2 |
Last trade - 16.10pm 03/05/2024 (20 minute delay) ? |
|
|||||
Last
29.0¢ |
  |
Change
0.005 ( 2.22 %) |
|||
Open | High | Low | Volume | ||
28.5¢ | 29.0¢ | 27.5¢ | 831103 | ||
Last updated 15.58pm 03/05/2024 ? |
Featured News
GLN (ASX) Chart |