Yale scientists have developed an ultra-thin coating material that has the potential to extend the life and improve the efficiency of lithium-sulfur batteries, one of the most promising areas of energy research today.
In a study published online March 20 in the Proceedings of the National Academy of Sciences, researchers describe the new material — a dendrimer-graphene oxide composite film — which can be applied to any sulfur cathode. A cathode is the positive terminal on a battery.
According to the researchers, sulfur cathodes coated with the material can be stably discharged and recharged for more than 1,000 cycles, enhancing the battery’s efficiency and number of cycles.
“Our approach is general in that it can be integrated with virtually any kind of sulfur electrode to increase cycling stability,” said Hailiang Wang, assistant professor of chemistry at Yale, faculty member at the Yale Energy Sciences Institute at Yale West Campus, and lead investigator of the study. “The developed film is so thin and light it will not affect the overall size or weight of the battery, and thus it will function without compromising the energy and power density of the device.”
New types of electrodes — positive and negative terminals — are considered essential for the development of a new generation of high energy-density batteries. As lithium-ion batteries begin to reach their capacity limits, many researchers are looking at lithium-sulfur as a solution. Sulfur is both lightweight and abundant, with a high theoretical energy capacity. However, existing lithium-sulfur battery technology suffers from a loss of capacity during cycling.
The Yale team made its discovery by combining the distinct properties of two material components. They merged the mechanical strength of graphene oxide with the ability of a dendrimer molecule to confine lithium polysulfides. The result is a gel-like slurry that can be readily coated as a 100-nanometer-thin film onto sulfur electrodes.
Learn more: A new, gel-like coating beefs up the performance of lithium-sulfur batteries
[osd_subscribe categories=’lithium-sulfur-batteries’ placeholder=’Email Address’ button_text=’Subscribe Now for any new posts on the topic “LITHIUM-SULFUR BATTERIES”‘]
The Latest on: Lithium-sulfur batteries
[google_news title=”” keyword=”lithium-sulfur batteries” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Lithium-sulfur batteries
- Abundant Elements Enhance Lithium-Iron Battery Performanceon May 2, 2024 at 7:12 am
Reviewed by Lexie CornerAccording to a study published in ACS Materials Letters, researchers from Hokkaido University, Tohoku University, and Nagoya Institute, Japan, discovered an affordable and high ...
- Michael Everett Joins Zeta Energy as Chief Operating Officeron May 2, 2024 at 6:00 am
Zeta Energy, a Houston-based company that has developed a world-leading lithium-sulfur battery, announced today that Michael Everett will join Zeta as Chief Operating Officer.
- MIT Technology Reviewon May 2, 2024 at 3:00 am
First, there’s a new special report from the International Energy Agency all about how crucial batteries are for our future energy systems. The report calls batteries a “maste ...
- Australian lithium-sulfur battery player claims to have nailed safety standardson May 1, 2024 at 5:00 pm
Brisbane-based Li-S Energy has announced that its GEN3 semi-solid-state lithium sulfur (Li-S) battery cells have successfully passed a series of nail penetration tests, with the results exceeding ...
- Li-S Energy Next Generation Batteries Pass Critical Safety Testson May 1, 2024 at 5:30 am
Australian battery technology company Li-S Energy Limited (ASX Code: LIS) is pleased to announce its semi-solid-state lithium sulfur (Li-S) battery cells have successfully passed a rigorous series of ...
- Australian battery developer says its new lithium sulfur chemistry passes nail stab test, without explodingon April 30, 2024 at 10:13 pm
The Victoria battery maker has posted a video showing what happens to its cells versus what happens to an equivalent lithium ion version when penetrated with a nail.
- Scientists make breakthrough with high-power lithium-sulfur batteries: 'Our research shows a significant advancement'on April 30, 2024 at 5:00 am
"Our research shows a significant advancement, enabling lithium-sulfur batteries to achieve full charge/discharge in less than five minutes," Professor Shizhang Qiao, the research lead, said in a ...
- Sodium Batteries From Michigan to Challenge Lithium’s Gripon April 29, 2024 at 5:00 am
Natron Energy Inc. will unveil what it bills as the first full-scale plant in the US for making sodium-ion batteries on Monday. The plant situated near Michigan’s western shore has already started ...
- Batteries Newson April 28, 2024 at 5:00 pm
Researchers are developing new ... Healable Cathode Could Unlock Potential of Solid-State Lithium-Sulfur Batteries Mar. 6, 2024 — Engineers developed a cathode material for lithium-sulfur (Li-S ...
via Bing News