Coupling with perovskite solar cell holds potential for cleaner cars and more
Consumers aren’t embracing electric cars and trucks, partly due to the dearth of charging stations required to keep them moving. Even the conservation-minded are hesitant to go electric in some states because, studies show, if fossil fuels generate the electricity, the car is no greener than one powered with an efficient gasoline.
Charging cars by solar cell would appear to be the answer. But most cells fail to meet the power requirements needed to directly charge lithium-ion batteries used in today’s all-electric and plug-in hybrid electric vehicles.
Researchers at Case Western Reserve University, however, have wired four perovskite solar cells in series to enhance the voltage and directly photo-charged lithium batteries with 7.8 percent efficiency–the most efficient reported to date, the researchers believe.
The research, published in the Aug. 27 issue of Nature Communications, holds promise for cleaner transportation, home power sources and more.
“We found the right match between the solar cell and battery,” said Liming Dai, the Kent Hale Smith Professor of macromolecular science and engineering and leader of the research. “Others have used polymer solar cells to charge lithium batteries, but not with this efficiency.”
In fact, the researchers say their overall photoelectric conversion and storage outperformed all other reported couplings of a photo-charging component with lithium-ion batteries, flow batteries or super-capacitors.
Perovskite solar cells have active materials with a crystalline structure identical to the mineral perovskite and are considered a promising new design for capturing solar energy. Compared to silicon-based cells, they convert a broader spectrum of sunlight into electricity.
In short order, they have matched the energy conversion of silicon cells, and researchers around the world are pursuing further advances.
Dai’s lab made multilayer solar cells, which increases their energy density, performance and stability. Testing showed that, as desired, the three layers convert into a single perovskite film.
By wiring four lab-sized cells, about 0.1 centimeter square each, in series, the researchers further increased the open circuit voltage. The solar-to-electric power conversion efficiency was 12.65 percent.
To charge button-sized lithium-ion batteries, they used a lithium-ion-phosphate cathode and a lithium-titanium-oxide anode. The photoelectric conversion and storage efficiency was 7.8 percent. Through 10 photo-charge/galvanostatic (steady current) discharge cycles lasting nearly 18 hours, the technology maintained almost identical discharge/charge curves over all cycles, showing high cycling stability and compatibility of the components.
“We envision, in the not too distant future, this is a system that you could have at home to refuel your car and, eventually, because perovskite solar cells can be made as a flexible film, they would be on the car itself,” said Jiantie Xu, who, with Yonghua Chen, is an equally contributing first author of the study.
The Latest on: Battery Charging
via Google News
The Latest on: Battery Charging
- Polestar Bets on StoreDot’s Fast-Charging Batteryon May 26, 2022 at 6:40 am
StoreDot promises battery tech that will add enough energy in five minutes for an EV to travel 100 miles. But when could we see it in cars?
- Polestar Invests In Extreme Fast Charging Battery Company StoreDoton May 24, 2022 at 8:22 am
The company follows in the footsteps of Volvo, which announced a similar move in April. Polestar announced that it has made its first financial investment in another company - StoreDot, an ...
- STOREDOT, THE EXTREME FAST CHARGING BATTERY PIONEER, JOINS FORCES WITH POLESTAR IN STRATEGIC PARTNERSHIPon May 24, 2022 at 12:18 am
StoreDot, the pioneer of extreme fast charging technologies for electric vehicles, has entered a strategic partnership with Polestar, following an investment from the all-electric premium performance ...
- Deals: Amazon Discounting Apple's MagSafe Charger, Duo Charger, and Battery Packon May 23, 2022 at 8:03 am
Today we're tracking a collection of discounts on Apple's charging accessories, including the MagSafe Charger, MagSafe Duo Charger, ...
- Battery charge dropped against Florida rapper Rod Waveon May 22, 2022 at 7:26 am
A domestic battery charge against a 23-year-old Florida rapper who goes by the name Rod Wave has has been dropped, according to court documents.
- XCHARGE Launches Battery-integrated Charger in Cooperation with BYDon May 16, 2022 at 9:01 pm
The newly released Net Zero Series has a high-power output of 210kW, with the capacity to charge multiple vehicles in less than 30 minutes.
- FREYR Battery: Charging Up To Become A Leading Battery Manufactureron May 12, 2022 at 2:47 pm
FREYR is well positioned to capitalize on the lithium ion battery boom. FREYR is able to leverage on the 24M battery technology to keep battery costs competitive, improve performance, and at the ...
- Charging an EV at home, in public: Everything to know about cost, time, stationson May 10, 2022 at 4:58 pm
Almost all modern EVs can charge at that rate. Vehicles that can take more are less common, but better: 350kW equals 800v. That will fill a battery to 80%-90% in 20 minutes or less. At that rate ...
- My i-MiEV’s Public Charging Quirks Keep Almost Leaving Me Strandedon May 10, 2022 at 9:01 am
I didn’t buy it for the driving dynamics, however, I bought it to better understand the car’s practical implications, particularly the battery range and charging experience. Recently ...
- How to Charge Your Laptop With USB-C: Your Questions Answeredon May 9, 2022 at 9:16 am
as opposed to using the port to charge the laptop’s battery.) On top of that, the device settings of the laptop can enable some of these connectivity features, or disable others. So much for simple.
via Bing News