Electric vehicle owners may soon be able to pull into a fueling station, plug their car in, go to the restroom, get a cup of coffee and in 10 minutes, drive out with a fully charged battery, according to a team of engineers.
“We demonstrated that we can charge an electrical vehicle in ten minutes for a 200 to 300 mile range,” said Chao-Yang Wang, William E. Diefenderfer Chair of mechanical engineering, professor of chemical engineering and professor of materials science and engineering, and director of the Electrochemical Engine Center at Penn State. “And we can do this maintaining 2,500 charging cycles, or the equivalent of half a million miles of travel.”
Lithium-ion batteries degrade when rapidly charged at ambient temperatures under 50 degrees Fahrenheit because, rather than the lithium ions smoothly being inserted into the carbon anodes, the lithium deposits in spikes on the anode surface. This lithium plating reduces cell capacity, but also can cause electrical spikes and unsafe battery conditions.
Batteries heated above the lithium plating threshold, whether by external or internal heating, will not exhibit lithium plating.
The researchers had previously developed their battery to charge at 50 degrees F in 15 minutes. Charging at higher temperatures would be more efficient, but long periods of high heat also degrade the batteries.
“Fast charging is the key to enabling wide spread introduction of electric vehicles,” said Wang.
Wang and his team realized that if the batteries could heat up to 140 degrees F for only 10 minutes and then rapidly cool to ambient temperatures, lithium spikes would not form and heat degradation of the battery would also not occur. They report their results in today’s (Oct 30) issue of Joule.
“Taking this battery to the extreme of 60 degrees Celsius (140 degrees F) is forbidden in the battery arena,” said Wang. “It is too high and considered a danger to the materials and would shorten battery life drastically.”
The rapid cooling of the battery would be accomplished using the cooling system designed into the car, explained Wang. The large difference from 140 degrees to about 75 degrees F will also help increase the speed of cooling.
“The 10-minute trend is for the future and is essential for adoption of electric vehicles because it solves the range anxiety problem,” said Wang.
Adding to the reduction of range anxiety — fear of running out of power with no way or time to recharge — will be, according to Reuters, the establishment of 2,800 charging stations across the U.S., funded by the more than $2 billion penalty paid by Volkswagen after admitting to diesel emissions cheating. These charging stations will be in 500 locations.
The self-heating battery uses a thin nickel foil with one end attached to the negative terminal and the other extending outside the cell to create a third terminal. A temperature sensor attached to a switch causes electrons to flow through the nickel foil to complete the circuit. This rapidly heats up the nickel foil through resistance heating and warms the inside of the battery.
The Latest on: Fast charging electric vehicles
via Google News
The Latest on: Fast charging electric vehicles
- Montezuma County purchases three electric vehicleson February 1, 2020 at 2:47 pm
They fully recharge after 10 hours. If needed mid-trip, charging stations for electric vehicles are in Mancos, Rico, Mesa Verde National Park and Durango. The county is working with Empire Electric ...
- Lack of Electric Vehicle Charging Stations a Growing Concernon January 30, 2020 at 2:27 pm
According to recent research from the International Council for Clean Transportation (ICCT), the country will need to increase workplace and public fast ... charging stations in metro areas by 400 ...
- Commercial Vehicles Charge Toward Electric Futureon January 27, 2020 at 2:20 pm
Commercial vehicles are going electric through launches of demonstration fleets of varying sizes testing the viability of running on battery power or hydrogen fuel cells instead of diesel. Smaller ...
- Global electric vehicle charging stations marketon January 27, 2020 at 4:42 am
and is capable of Level 2 and DC Fast Charging. In February 2018, ClipperCreek announced the launch of the CP-50 which is used for installing and maintaining electric vehicle supply equipment. In June ...
- VW deploys first electric car charging stations with giant integrated batterieson January 24, 2020 at 12:37 pm
VW has started deploying its new electric car charging stations with giant integrated batteries to help manage the ... The German automaker presented it as an easily deployable all-in-one ...
- Madras gets electric vehicle fast-charging stationon January 23, 2020 at 10:33 am
MADRAS, Ore. (KTVZ) -- Oregon has big plans for electric vehicles. The state has a goal to have 50,000 electric-fueled vehicles on Oregon’s highways and byways by the end of 2020. Pacific Power ...
- Wireless Electric Vehicle (EV) Chargingon January 22, 2020 at 3:09 am
and fast developing EV infrastructure, which is expected to increase demand for wireless electric vehicle charging over the forecast period. For instance, according to the Global EV Outlook, in 2018, ...
- As Demand For Public Electric Vehicle Grows, French Oil Giant Wins Charging Points Deal In Amsterdamon January 21, 2020 at 4:00 pm
charging by the ‘Metropolitan Region Amsterdam Electric’ (MRA-Electric). Under the contract deal, Total will install and operate up to 20,000 new public charging points in the Netherlands, in the ...
- Hancock opens electric-vehicle charging stationson January 20, 2020 at 1:01 pm
HANCOCK — Officials from Hancock, the Maryland Energy Administration and the Electric Vehicle Institute recently announced the opening of two direct-current, fast-charging stations. According to a ...
- Enevate Commercializing New Low Cost Battery Technology Providing Extreme Fast Charging and Long Range for Electric Vehicleson January 20, 2020 at 11:26 am
–(BUSINESS WIRE)–January 20, 2020– Enevate, a pioneer in advanced silicon-dominant lithium-ion (Li-ion) battery technology capable of extreme fast charging for electric vehicles (EVs), announced its ...
via Bing News