Featured Research

from universities, journals, and other organizations

Researching materials to optimize lithium-ion battery performance

Date:
April 8, 2014
Source:
Investigación y Desarrollo
Summary:
Creating environment friendly energy storage systems, non-explosive and with charge/discharge long-term cycles, motivated a group of scientists to research which polymeric materials have the properties to maintain the highest level of energy in a lithium - ion battery.

Creating environment friendly energy storage systems, non-explosive and with charge/discharge long-term cycles, motivated a group of scientists to research which polymeric materials have the properties to maintain the highest level of energy in a lithium -- ion battery.
Credit: Image courtesy of Investigación y Desarrollo

Creating environment friendly energy storage systems, non-explosive and with charge/discharge long-term cycles, motivated a group of scientists from the Autonomous Metropolitan University, Campus Iztapalapa (UAM -I), to research which polymeric materials have the properties to maintain the highest level of energy in a lithium -- ion battery.

According to Judith Martinez Cardoso, co-head of the project at the Department of Physics, this research was supported by the Ministry of Science, Technology and Innovation of the Federal District. "Our commitment is to design batteries that can replace those currently used in the Public Transport System Metro, of nickel- cadmium, which are highly polluting and when breaking eliminate fluid that can cause serious toxicity problems."

She also notes, that this development would also achieve the creation of optimized polymer electrolyte lithium-ion rechargeable batteries for electric or hybrid vehicles, computers, cell phones and camcorders, including portable systems.

This material (polymer electrolyte) is similar to plastic and, in solid state, has the ability to contain the lithium inside a battery, because of its low weight enables greater amount of driving electric charge with a lower weight.

"A battery is a current generator because it transforms chemical energy into electrical, in this case provided by the processing of materials containing lithium, in the two electrodes that are part of the generator and in the polymer," Ignacio Martínez González explains, a project partner within the Department of Chemistry at UAM -I.

The market has made available lithium-ion rechargeable batteries since late last century, but they have several disadvantages. According to the researchers, batteries tend to deteriorate if stored unloaded, support a limited number of charges, are expensive and can overheat to the point of exploding.

"Because it requires an electrolyte (which dissociates a lithium salt) to lead the charge, the problem was that manufacturers have used chemicals that can degrade and generate this explosion," said Martinez González.

For these reasons, according to researchers, the lithium-ion batteries have been modified to prevent bursting. Furthermore, different countries are working on technologies that have a higher yield and making them safer for users.

In fact, says Martinez Cardoso, it was the problem that presented some Boeing aircrafts with its lithium- ion battery, which contained organic liquids that became flammable when a critical temperature was reach. "Hence, our work is aimed to use non-toxic and non-explosive materials, such as polymers."

"Although we still lack a prototype, we are developing three very important elements, such as the chemicals that will carry the two electrodes and the polymer system that will contain the electrolyte. The idea is to have greater capacity to store energy and a durable cycle of loading and unloading without losing efficiency, "said Martínez González.

It also states that the objective is to design a safe technology, at a low cost and efficient enough to meet the needs of energy storage and increase the capacity of the batteries. "The polymer electrolyte we work with has great potential to be used, so we are building cells to test this material as a whole together with the lithium electrode."

So far, the research team has used synthetic type materials; however, they have a widespread interest in using biological polymers to make the batteries biodegradable and avoid creating any environmental damage.


Story Source:

The above story is based on materials provided by Investigación y Desarrollo. Note: Materials may be edited for content and length.


Cite This Page:

Investigación y Desarrollo. "Researching materials to optimize lithium-ion battery performance." ScienceDaily. ScienceDaily, 8 April 2014. <www.sciencedaily.com/releases/2014/04/140408074817.htm>.
Investigación y Desarrollo. (2014, April 8). Researching materials to optimize lithium-ion battery performance. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2014/04/140408074817.htm
Investigación y Desarrollo. "Researching materials to optimize lithium-ion battery performance." ScienceDaily. www.sciencedaily.com/releases/2014/04/140408074817.htm (accessed July 24, 2014).

Share This




More Matter & Energy News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) — 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
Powered by NewsLook.com
Boeing Ups Outlook on 52% Profit Jump

Boeing Ups Outlook on 52% Profit Jump

Reuters - Business Video Online (July 23, 2014) — Commercial aircraft deliveries rose seven percent at Boeing, prompting the aerospace company to boost full-year profit guidance- though quarterly revenues missed analyst estimates. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com
Europe's Car Market on the Rebound?

Europe's Car Market on the Rebound?

Reuters - Business Video Online (July 23, 2014) — Daimler kicks off a round of second-quarter earnings results from Europe's top carmakers with a healthy set of numbers - prompting hopes that stronger sales in Europe will counter weakness in emerging markets. Hayley Platt reports. Video provided by Reuters
Powered by NewsLook.com
9/11 Commission Members Warn of Terror "fatigue" Among American Public

9/11 Commission Members Warn of Terror "fatigue" Among American Public

Reuters - US Online Video (July 22, 2014) — Ten years after releasing its initial report, members of the 9/11 Commission warn of the "waning sense of urgency" in combating terrorists attacks. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins