A bio-based anode material for ultrafast battery charging
Poly (benzimidazole), the precursor for the proposed anodematerial, can be derived from biological processes and processed easily to create fast-charging lithium-ion batteries. Their adoption in electric vehicles will make them more attractive to consumers over conventional cars, leading to a cleaner environments and reduced CO2 emissions.
Image credit: Noriyoshi Matsumi from Japan Advanced Institute of Science and Technology
The proposed stable anode material, made with a bio-based polymers, could unlock extremely fast battery charging for electric vehicles
To overcome the slow charging times of conventional lithium-ion batteries, scientists from Japan Advanced Institute of Science and Technology have developed a new anode material that allows for ultrafast charging. Produced via a simple, environmentally sound and efficient approach involving the calcination of a bio-based polymer, this novel material also retained most of its initial capacity over thousands of cycles. The findings of this study will pave the way to fast-charging and durable batteries for electric vehicles.
With the climate change concerns, an ever-increasing number of researchers are currently focusing on improving electric vehicles (EVs) to make them a more attractive alternative to conventional gas cars. The battery improvement of EVs is a key issue to attract more drives. In addition to safety, autonomy, and durability, most people want quickness in charging. Currently, it takes 40-minute with state-of-the-art EVs while gas cars can be ‘recharged’ in no longer than five minutes. The charging time needs to be below 15 minutes to be a viable option.
Unsurprisingly, lithium-ion batteries (LIBs), which are used everywhere with portable electronic devices, have been recognized as an option in the field of EVs, and new strategies are always being sought to improve their performance. One way to shorten the charging time of LIBs is to increase the diffusion rate of lithium ions, which in turn can be done by increasing the interlayer distance in the carbon-based materials used in the battery’s anode. While this has been achieved with some success by introducing nitrogen impurities (technically referred to as ‘nitrogen doping’), there is no method easily available to control interlayer distance or to concentrate the doping element.
Against this backdrop, a team of scientists from Japan Advanced Institute of Science and Technology (JAIST) recently developed an approach for anode fabrication that could lead to extremely fast-charging of LIBs. The team, led by Prof. Noriyoshi Matsumi, consists of Prof. Tatsuo Kaneko, Senior Lecturer Rajashekar Badam, JAIST Technical Specialist Koichi Higashimine, JAIST Research Fellow Yueying Peng, and JAIST student Kottisa Sumala Patnaik, and their findings were published online on 24 Nov 2021 in Chemical Communications.
Their strategy constitutes a relatively simple, environmentally sound, and highly efficient way to produce a carbon-based anode with very high nitrogen content. The precursor material for the anode is poly (benzimidazole), a bio-based polymer that can be synthesized from raw materials of biological origin. By calcinating this thermally stable material at 800 °C, the team managed to prepare a carbon anode with a record-setting nitrogen content of 17% in weight. They verified the successful synthesis of this material, and studied its composition and structural properties using a variety of techniques, including scanning electron tunneling microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy.
To test the performance of their anode and compare it with the more common graphite, the researchers built half-cells and full-cells, and conducted charge-discharge experiments. The results were very promising, as the proposed anode material proved suitable for fast charging, thanks to its enhanced lithium-ion kinetics. Moreover, durability tests showed that the batteries with the proposed anode material retained about 90% of its initial capacity even after 3,000 charge-discharge cycles at high rates, which is considerably more than the capacity retained by graphite-based cells.
Excited about the results, Professor Matsumi comments, “The extremely fast charging rate with the anode material we prepared could make it suitable for use in EVs. Much shorter charging times will hopefully attract consumers to choose EVs rather than gasoline-based vehicles, ultimately leading to cleaner environments in every major city across the world.”
Another notable advantage of the proposed anode material is the use of a bio-based polymer in its synthesis. As a low-carbon technology, the material naturally leads to a synergistic effect that reduces CO2 emissions further. Additionally, as Professor Matsumi remarks, “The use of our approach will advance the study of structure-property relationships in anode materials with rapid charge-discharge capabilities.”
Modifications to the structure of the polymer precursor could lead to even better performance, which might be relevant for the batteries not only of EVs, but also of portable electronics. Finally, the development of highly durable batteries will decrease the global consumption of rare metals, which are non-renewable resources.
Let us all hope future progress in this field will pave the way to the widespread adoption of electric cars and other ecofriendly technologies.
The Latest Updates from Bing News & Google News
Go deeper with Bing News on:
- IISc engineers breakthrough power switch for rapid EV charging
Due to its exceptional performance and efficiency, the gallium nitride-based power switch is anticipated to supersede traditional silicon-based transistors as fundamental components in many electronic ...
- This 6-In-1 Cable Charging Apple, Android, And More Is A Traveler's Dream
Dump the rat's nest of cables in your bag and streamline with one, simple, powerful charging cable that handles Apple, Android, and everything else.
- Orbital currents can go far—a promising novel ultrafast channel for data processing
Orbitronics is a recently emerging field of research on the manipulation of the orbital degree of freedom of electrons for quantum information technology. However, unambiguously detecting ultrafast ...
- Amazon deals: This $10 USB-C charging cable will power up your iPhone 15 in minutes
Amazon is offering a sweet deal on this essential USB-C charging cable that you can use with the new iPhone 15, other Apple products and more ...
- NRMA to charge EV motorists to power up
Electric car drivers will pay to charge up their vehicles at NRMA stations from this week as the motoring organisation introduces fees for the first time.
Go deeper with Google Headlines on:
[google_news title=”” keyword=”ultrafast charging” num_posts=”5″ blurb_length=”0″ show_thumb=”left”]
Go deeper with Bing News on:
- Nissan Leaf SV Plus for 2024 can go up to 212 miles on full battery charge
The 2024 Plus model, which we tested for this report, has the best range. It can go up to 212 miles on a full battery charge, Nissan says. That’s down from the 2022 model’s estimated 215-mile range, ...
- EV jolts: ChargePoint and Blink Charging rally after landing buy ratings from UBS
UBS initiated coverage on electric vehicle charging stocks, Blink Charging (BLNK) and ChargePoint Holdings (CHPT), with a Buy rating. Read more.
- Battery charge against ex-UFC fighter Nate Diaz dropped months after Bourbon Street brawl
We appreciate the Orleans Parish District Attorney taking the time to review all aspects of this case and their decision to not proceed with it,” Diaz’s spokesperson said.
- Ode To The TL431, And A LiFePO4 Battery Charger
Nerd Ralph loves cheap and dirty hacks, and for that we applaud him. His latest endeavor is a LiFePO4 battery charger that he made out of parts he had on hand for under $0.50 US. (Although we ...
- Orleans Parish District Attorney’s Office refuses battery charge against MMA fighter Nate Diaz
The Orleans Parish District Attorney's Office refused the second-degree battery charge against MMA fighter Nate Diaz on Monday, Sept. 25, according to court documents.
Go deeper with Google Headlines on:
[google_news title=”” keyword=”battery charging” num_posts=”5″ blurb_length=”0″ show_thumb=”left”]