Tag Archives: electric tricycle battery

Self-heating, fast-charging battery makes electric vehicles climate-immune

Self-heating, fast-charging battery makes electric vehicles climate-immune

Date:

June 28, 2018

Source:

Penn State

Summary:

Californians buy EVs because they live in a warm climate. Conventional lithium-ion batteries cannot be rapidly charged at temperatures below 50 degrees Fahrenheit, but now a team of engineers has created a battery that can self-heat, allowing rapid charging regardless of the outside chill.

self-heating,fast charging electric battery
self-heating,fast charging electric battery
A fast charging battery for all outside temperatures that rapidly heats up internally prior to charging battery materials.
Credit: Chao-Yang Wang / Penn State Self-heating, fast-charging

 

I work in Qiangsheng Electric Tricycle Factory, the news that self-heat batteries can be created is really an excellent news to everyone that support environmental protection,we always pay attention to the environmental friendliness and are always engaged in promoting our E-Rickshaw efficiency.

When owners can recharge car batteries in 15 minutes at a charging station, electric vehicle refueling becomes nearly equivalent to gasoline refueling in the time it takes,which can greatly improve the development of Electric vehicles such as Electric cars, electric tricycles and electric motorcycles. Assuming that charging stations are liberally placed, drivers can lose their “range anxiety” and drive long distances without worries.

Previously, the researchers developed a battery that could self-heat to avoid below-freezing power drain. Now, the same principle is being applied to batteries to allow 15-minute rapid charging at all temperatures, even as low as minus 45 degrees F.

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 when the temperature is below room temperature. This rapidly heats up the nickel foil through resistance heating and warms the inside of the battery. Once the battery’s internal temperature is above room temperature, the switch turns opens and the electric current flows into the battery to rapidly charge it. “One unique feature of this cell is that it will do the heating and then switch to charging automatically,” 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. “Also, the stations already out there do not have to be changed. Control off heating and charging is within the battery, not the chargers.”

The researchers report the results of their prototype testing in this week’s edition of the Proceedings of the National Academy of Sciences. They found that their self-heating battery could withstand 4,500 cycles of 15-minute charging at 32 degrees F with only a 20-percent capacity loss. This provides approximately 280,000 miles of driving and a lifetime of 12.5 years, longer than most warranties.

A conventional battery tested under the same conditions lost 20-percent capacity in 50 charging cycles.

Lithium-ion batteries degrade when rapidly charged under 50 degrees F because, rather than the lithium ions smoothly integrating with 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. Currently, long, slow charging is the only way to avoid lithium plating under 50 degrees F.

Batteries heated above the lithium plating threshold, whether by ambient temperature or by internal heating, will not exhibit lithium plating and will not lose capacity.

“This ubiquitous fast-charging method will also allow manufacturers to use smaller batteries that are lighter and also safer in a vehicle,” said Wang.

facebooktwittergoogle_plusredditpinterestlinkedinmail

Fashion DC brushless elder electric tub tub on low price

Fashion DC brushless elder electric tub tub on low price

Fashion DC brushless elder electric tub tub on low price
Fashion DC brushless elder electric tub tub on low price
Overall size 1.7*7.0*1.6 (m*m*m)
Top speed 35km/h
Once charging mileage 100km
Grade ability 20 degree
No.of passengers 1-2 persons
Charging Voltage 220v,50hz
Charging times 6-8 hours
Motor 48v/500w DC brushless motor
Transmission mode Differential
Battery 12v 20ah Lead acid battery (4pcs)
Wheel size Front 2.50-16  Back 2.50-16
brake type Hydraulic brake
Charger have
Loading quantity 34pcs/20 GP’  80pcs/40’HQ

our company

Qiangsheng Group is founded in 2005, located in Xianghe county (Beijing-Tianjin corridor). It a professional enterprise that specializing in electric tricycle R&D, production, sales, trading and spare parts service.

Our factory covers an area of 50.000 square meters, owns the most advanced production line and detection equipment, professional welding workshops, machining workshops, electrophoresis painting workshops and assembly workshops.

Our electric tricycle have awarded number of patents: Double rear axle, Multifunctional shed, Gearbox, electric insulation box,movable seat, folding seats, Etc. We are awarded chinese famous Brand, consumers trust products, CCTV brand as well. We have built stable supplying relationship in south Asia, Southeast Asia, middle East Asia, South America.

factory for alibaba Factory electrophoresis workshop

If you want to get more information,contact us at any time

QIANGSHENG ELECTRIC VEHICLE MANUFACTURING FACTORY
www.pcqs-china.com
Add:Qianwang Industry Park, Xianghe County,Langfang city,Hebei,China
( Leading Manufacture of passenger electric rickshaw)

Fashion DC brushless elder electric tub tub on low price

 

facebooktwittergoogle_plusredditpinterestlinkedinmail