Navigation Links
Pressure cooking to improve electric car batteries
Date:11/18/2013

RIVERSIDE, Calif. (http://www.ucr.edu) Batteries that power electric cars have problems. They take a long time to charge. The charge doesn't hold long enough to drive long distances. They don't allow drivers to quickly accelerate. They are big and bulky.

Researchers at the University of California, Riverside's Bourns College of Engineering have redesigned the component materials of the battery in an environmentally friendly way to solve some of these problems. By creating nanoparticles with a controlled shape, they believe smaller, more powerful and energy efficient batteries can be built.

"This is a critical, fundamental step in improving the efficiency of these batteries," said David Kisailus, an associate professor of chemical and environmental engineering and lead researcher on the project.

In addition to electric cars, the redesigned batteries could be used for municipal energy storage, including energy generated by the sun and wind.

The initial findings are outlined in a just published paper called "Solvothermal Synthesis, Development and Performance of LiFePO4 Nanostructures" in the journal Crystal Growth & Design.

Kisailus, who is also the Winston Chung Endowed Professor in Energy Innovation, and Jianxin Zhu, a Ph.D. student working with Kisailus, were the lead authors of the paper. Other authors were: Joseph Fiore, Dongsheng Li, Nichola Kinsinger and Qianqian Wang, all of whom formerly worked with Kisailus; Elaine DiMasi, of Brookhaven National Laboratory; and Juchen Guo, an assistant professor of chemical and environmental engineering at UC Riverside.

The researchers in Kisailus' Biomimetics and Nanostructured Materials Lab set out to improve the efficiency of Lithium-ion batteries by targeting one of the material components of the battery, the cathode.

Lithium iron phosphate (LiFePO4), one type of cathode, has been used in electric vehicles because of its low cost, low toxicity and thermal and chemical stability. However, its commercial potential is limited because it has poor electronic conductivity and lithium ions are not very mobile within it.

Several synthetic methods have been utilized to overcome these deficiencies by controlling particle growth. Here, Kisailus and his team used a solvothermal synthetic method, essentially placing reactants into a container and heating them up under pressure, like a pressure cooker.

Kisailus, Zhu and their team used a mixture of solvents to control the size, shape and crystallinity of the particles and then carefully monitored how the lithium iron phosphate was formed. By doing this, they were able to determine the relationship between the nanostructures they formed and their performance in batteries.

By controlling the size of nanocrystals, which were typically 5,000 times smaller than the thickness of a human hair, within shape-controlled particles of LiFePO4, Kisailus' team has shown that batteries with more power on demand may be generated.

These size and shape modulated particles offer a higher fraction of insertion points and reduced pathlengths for Li-ion transport, thus improving battery rates. Kisailus and his team are currently refining this process to not only further improve performance and reduce cost, but also implement scalability.


'/>"/>

Contact: Sean Nealon
sean.nealon@gmail.com
951-827-1287
University of California - Riverside
Source:Eurekalert  

Related biology news :

1. Bruin Biometrics, LLC Awarded CE Mark for the SEM Scanner, an Innovative Diagnostic Tool to Detect Pressure Induced Tissue Damage
2. African-American study identifies 4 genetic variants associated with blood pressure
3. Size really does not matter when it comes to high blood pressure
4. Pressure cooker on steroids treats human waste
5. Efficacy of acupressure to relieve migraine nausea presented at International Headache Congress
6. Study links chemicals widely found in plastics and processed food to elevated blood pressure in children and teens
7. Researchers use graphene quantum dots to detect humidity and pressure
8. Cocktail of multiple pressures combine to threaten the worlds pollinating insects
9. Molecular hub links obesity, heart disease to high blood pressure
10. Prenatal exposure to pesticide DDT linked to adult high blood pressure
11. Omega-3s from fish vs. fish oil pills better at maintaining blood pressure in mouse model
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Pressure cooking to improve electric car batteries
(Date:2/1/2016)... Rising sales of consumer electronics ... intuitive gesture control market size ... consumer electronics coupled with new technological advancements to drive ... through 2020   --> ... advancements to drive global touchfree intuitive gesture control market ...
(Date:2/1/2016)... , Feb. 1, 2016  Wocket® smart wallet ( www.wocketwallet.com ) announces ... personality, Joey Fatone . Las Vegas , ... --> Las Vegas , where Joey appeared ... The new video ad was filmed at the Consumer Electronics Show ... the Wocket booth to meet and greet fans. ...
(Date:1/27/2016)...  Rite Track, Inc. a leading semiconductor equipment and ... Ohio announced today the acquisition of PLUS LLC. ... Austin, Texas , will significantly bolster ... installations and technical support offerings for TEL Track Systems. ... "PLUS has provided world class service including refurbishment, enhancements ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... and GERMANTOWN, Maryland , February 11, ... Standard: QIA) today announced the introduction of more than ... profiling, expanding QIAGEN,s portfolio of Sample to Insight solutions ... select from over 20,000 human genes and lncRNA to ... cellular phenotypes and disease processes. --> QGEN ...
(Date:2/11/2016)... -- Wellcentive today announced it has been selected by FamilyCare ... community care organization (CCO) with more than 130,000 ... and care management solutions and services. Wellcentive,s capabilities ... managers, analysts and care managers while providing insight ... members. Oregon . ...
(Date:2/11/2016)... BEACH, Florida , February 11, 2016 /PRNewswire/ ... PositiveID Corporation ("PositiveID" or "Company") (OTCQB: PSID), ... diagnostics, announced today that its Thermomedics subsidiary, which ... progress on its growth plan in January 2016, ... products distributors, increasing sequential monthly sales growth, and ...
(Date:2/11/2016)... ... 11, 2016 , ... Global Stem Cells Group, ... Global Stem Cells Network (GSCN) to distribute exosome injection and other biological products ... Costa Rica, Dominican Republic, Colombia, Argentina, Nicaragua, Panama, El Salvador, Venezuela, Peru, Ecuador, ...
Breaking Biology Technology: