NOV 07, 2019 7:30 AM PST

Electrifying Breakthrough: New Tech Adds 200 Miles to EVs with only 10-Min Charging

WRITTEN BY: Daniel Duan

(C-Y Wang Group Penn State U)

One of the most noticeable drawbacks of electric vehicles (EVs) is their long charging time. That's why the U.S. Department of Energy has set a goal to develop a new type of charging method called extreme fast charging (XFC), which allows EVs to gain a 200-mile range with only 10 min charging.

According to a recently published study, a team of Pennsylvania State University chemical engineers came up with a brilliant solution to achieve XFC. 

Instead of building a brand new type of battery, they suited a lithium-ion (Li-ion) battery with a nickel "jacket," which heats up the cell prior to charging. Their technique successfully charged up batteries fast and repeatedly with a high-voltage power source. Their test batteries showed minimum loss of capacity and no sign of material degradation known as lithium plating.

Lithium plating is the formation of metallic lithium around the anode, which happens when a considerable amount of energy gets stored into a Li-ion battery within a short period. When lithium deposits occur, they can severely reduce battery lifespan and even cause short-circuits and fire.

To avoid lithium plating, industrial experts warned against charging using over-voltage power source and charge/discharge in an environment below 59 F (or 15 C). 

Using their nickel "jacket", the Penn State researchers can heat the whole battery uniformly in a matter of minutes. At three test temperatures, 40, 49, and 60 C, and 20 C as control, they tested the batteries for the charging efficiency and capacity for numerous charge/discharge cycles under a 400 kilowatts charging rate. 

They found the batteries preheated to 60 C lasted with perfect health for 1,700 cycles, while the control cell at 20 C only survived 60 cycles before the lithium plating ruined its lifespan. Post-experiments structural analyses found no lithium plating in batteries pre-heated to 49 and 60 C.

The researchers hope that their new, scalable charging method can alleviate the range anxiety for EV drivers, and encourage the use of EV and the construction of more charging stations.

This breakthrough is reported in the journal Joule.

Want to know more about how Li-ion batteries work? Check out the following video from ACS Reactions.

How Do Lithium-Ion Batteries Work? (ACS Reactions)

Source: EurekAlert

 

About the Author
  • Graduated with a bachelor degree in Pharmaceutical Science and a master degree in neuropharmacology, Daniel is a radiopharmaceutical and radiobiology expert based in Ottawa, Canada. With years of experience in biomedical R&D, Daniel is very into writing. He is constantly fascinated by what's happening in the world of science. He hopes to capture the public's interest and promote scientific literacy with his trending news articles. The recurring topics in his Chemistry & Physics trending news section include alternative energy, material science, theoretical physics, medical imaging, and green chemistry.
You May Also Like
DEC 18, 2020
Chemistry & Physics
New research on the physical dynamics of SARS-CoV-2 on surfaces
DEC 18, 2020
New research on the physical dynamics of SARS-CoV-2 on surfaces
New research published in Advanced Nano-Biomed Research contemplates the physical dynamics of SARS-CoV-2 on abiotic ...
DEC 24, 2020
Chemistry & Physics
Novel Two-phased Particles are the Ultimate Authenticity Tag
DEC 24, 2020
Novel Two-phased Particles are the Ultimate Authenticity Tag
Counterfeit goods producers are flooding the global market with low-quality, sometimes dangerous merchandise and ripping ...
DEC 21, 2020
Chemistry & Physics
Newly described hydrogen hydrate holds potential for hydrogen storage
DEC 21, 2020
Newly described hydrogen hydrate holds potential for hydrogen storage
A study published recently in the journal Physical Review Letters highlights the discovery of a new hydrogen clathr ...
JAN 08, 2021
Chemistry & Physics
Detecting tumors from the shear waves emitted by song
JAN 08, 2021
Detecting tumors from the shear waves emitted by song
Will a singing test be the way the doctors of the future monitor thyroid health? According to a collaboration of researc ...
JAN 11, 2021
Chemistry & Physics
Improving our understanding of aerosol nucleation
JAN 11, 2021
Improving our understanding of aerosol nucleation
New research published in Science Advances documents for the first time ever the early processes of aerosol formation. A ...
MAR 31, 2021
Space & Astronomy
Were These the First Structures in the Universe?
MAR 31, 2021
Were These the First Structures in the Universe?
It's been theorized that our Universe started as a hot, incredibly dense point that exploded in the Big Bang. It's thoug ...
Loading Comments...