. 24/7 Space News .
ENERGY TECH
Proliferation of electric vehicles based on high-performance, low-cost sodium-ion battery
by Staff Writers
Seoul, South Korea (SPX) Jun 18, 2021

file illustration only

Various automobile companies are preparing to shift from internal combustion (IC) engine vehicles to electric vehicles (EVs). However, due to higher cost, EVs are not as easily accessible to consumers; hence, several governments are subsidizing EVs to promote sales. For EV costs to compete with those of IC engine vehicles, their batteries, which account for about 30% of their cost, must be more economical than that of IC-based vehicles.

The Korea Institute of Science and Technology (KIST) has announced that Dr. Sang-Ok Kim's team at the Center for Energy Storage Research had developed a novel, high-performance, economical anode material for use in sodium-ion secondary batteries, which are more cost-effective than lithium-ion batteries. This novel material can store 1.5 times more electricity than the graphite anode used in commercial lithium-ion batteries and its performance does not degrade even after 200 cycles at very fast charging/discharging rates of 10 A/g.

Sodium is over 500 times more abundant in the Earth's crust than lithium; hence, sodium-ion batteries have drawn considerable attention as the next-generation secondary battery because it is 40% cheaper than lithium-ion batteries. However, compared to lithium ions, sodium ions are larger and, thus, cannot be stored as stably in graphite and silicon, which are widely used as anodes in such batteries. Hence, the development of a novel, high-capacity anode material is necessitated.

The KIST research team used molybdenum disulfide (MoS2), a metal sulfide that has garnered interest as a candidate for large-capacity anode materials. MoS2 can store a large amount of electricity, but cannot be used because of its high electrical resistance and structural instability that occur during battery operation.

However, Dr. Sang-Ok Kim's team overcame this problem by creating a ceramic nano-coating layer using silicone oil, which is a low-cost, eco-friendly material. Through the simple process of mixing the MoS2 *precursor with silicone oil and heat-treating the mixture, they could produce a stable heterostructure with low resistance and enhanced stability.

Furthermore, the evaluation of electrochemical properties indicated that this material could stably store at least twice as much electricity (?600 mAh/g) as the MoS2 material without coating and could maintain this capacity even after 200 rapid charge/discharge cycles. This excellent performance was achieved by the formation of the ceramic nano-coating layer with high electric storage capacity, which imparts high conductivity and rigidity to the MoS2 surface, resulting in low electrical resistance of the material and high structural stability.

Dr. Sang-Ok Kim, stated "We could successfully solve the high resistance and structural instability problems of MoS2 through the nano-coating surface stabilization technology. As a result, we could develop a sodium-ion battery that can stably store a large amount of electricity. Our method uses cost-effective, eco-friendly materials and, if adapted for the large-scale manufacturing of anode materials, can lower production costs and, hence, boost the commercialization of sodium-ion batteries for large-capacity power storage devices."

Research paper


Related Links
National Research Council Of Science and Technology
Powering The World in the 21st Century at Energy-Daily.com


Thanks for being there;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Monthly Supporter
$5+ Billed Monthly


paypal only
SpaceDaily Contributor
$5 Billed Once


credit card or paypal


ENERGY TECH
Highview Enlasa developing liquid air energy storage facility in Chile
Austin TX (SPX) Jun 11, 2021
Highview Enlasa, the 50/50 joint venture between Highview Power, a global leader in long duration energy storage solutions, and Energia Latina S.A.-Enlasa, the largest backup power generation provider in Chile, is pleased to announce that it is developing the first liquid air long duration energy storage project in Chile. This 50MW/500MWh (10 hours) CRYOBattery, which represents an estimated investment of USD $150 million, will be located in Diego de Almagro in the Atacama Region. With one of the ... read more

Comment using your Disqus, Facebook, Google or Twitter login.



Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

ENERGY TECH
Sierra Space and Rhodium Scientific exploring viability of science operations on Sierra Space Life Habitat

Israel 'start-up nation' era may be ending: new figures

NASA's space communications user terminal

Boeing plans second Starliner capsule test flight in July

ENERGY TECH
Turkey invites Russia to take part in construction of country's spaceport

Debris from carrier rocket drop safely

NASA, SpaceX Update Crew Launch and Return Dates

NASA pursues greener, more efficient spacecraft propulsion

ENERGY TECH
Mars rover to move south after testing

China reveals photos taken by Mars rover

Perseverance Rover Begins Its First Science Campaign on Mars

NASA's Mars helicopter Ingenuity flies for 7th time

ENERGY TECH
Successful program ignited by modest spark of an idea

Astronauts board China's new space station for first time

Fresh group of astronauts readying for orbit

First astronauts arrive at China's space station

ENERGY TECH
SES Renews Long-Term Relationship with Comcast Technology Solutions

Voyage 2050 sets sail: ESA chooses future science mission themes

MIT study compares the four largest internet meganetworks

Experiment and innovate on our spacecraft

ENERGY TECH
Compact quantum computer for server centers

Meringue-like material could make aircraft as quiet as a hairdryer

Juice moves into Large Space Simulator

G7 nations commit to the safe and sustainable use of space

ENERGY TECH
Liquid water on exomoons of free-floating planets

Star's death will play a mean pinball with rhythmic planets

Connecting a star's chemical composition and planet formation

Scientists discover new exoplanet with an atmosphere ripe for study

ENERGY TECH
Next stop Jupiter as country's interplanetary ambitions grow

First images of Ganymede as Juno sailed by

Leiden astronomers calculate genesis of Oort cloud in chronologically order

NASA's Juno to get a close look at Jupiter's Moon Ganymede









The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.