by Staff Writers
Los Angeles CA (SPX) Oct 11, 2012
AllCell Technologies received a new U.S. patent covering the use of phase change materials (PCM) to prevent thermal runaway propagation in electrochemical devices such as lithium-ion batteries, ultra capacitors, and fuel cells. The new patent is an important extension of AllCell's intellectual property, which already includes U.S. and international patents covering the use of PCM for thermal management of electrochemical devices.
Through over a decade of research and development, AllCell has developed a proprietary composite material composed of a conductive matrix impregnated with various PCMs that extends the cycle life of lithium ion cells and can prevent the propagation of thermal runaway, a critical step in improving the safety of lithium-ion batteries.
Several recent high-profile incidents involving electric vehicle batteries have highlighted both the importance of battery safety and thermal management as well as the inadequacy of conventional thermal management strategies.
Automakers are rapidly realizing that complex liquid cooling systems add significant expense, reduce vehicle range, and are prone to leaks or other malfunctions that can compromise battery safety and performance. Manufacturers of smaller electric vehicles such as electric bicycles, scooters, and motorcycles similarly struggle to manage the thermal demands of increasingly energy dense batteries with high discharge rates.
AllCell's elegant and passive technology requires no power to operate and has no moving parts, paving the way for the industry to improve battery performance while simultaneously reducing battery cost.
One of the benefits of passive thermal management is the ability to operate even when the vehicle is turned off. Whether protecting car batteries parked all day in the scorching Phoenix sun or electric bike batteries baking inside a metal case exposed to direct sunlight, AllCell's PCM composite can protect the expensive lithium-ion battery cells from overheating, dramatically extending battery life.
According to AllCell CEO Said Al-Hallaj, "We are very pleased to announce this enhancement of our IP position during a period of rapid growth for our company. AllCell is excited to contribute to the critical improvements in electric vehicle batteries required to transition from today's limited market of early adopters to products with true mass market appeal."
Earlier this year AllCell announced the formation of AllCell Automotive, a joint venture with Townsend Ventures, LLC, created to commercialize PCM technology in automotive applications.
The AllCell Automotive team is already working closely with leading automotive OEMs and is developing a new generation of automotive lithium-ion batteries with PCM thermal management technology that will be introduced soon.
Powering The World in the 21st Century at Energy-Daily.com
Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.
Researchers Develop New Way to Determine Amount of Charge Remaining in Battery
Raleigh, NC (SPX) Oct 10, 2012
Researchers from North Carolina State University have developed a new technique that allows users to better determine the amount of charge remaining in a battery in real time. That's good news for electric vehicle drivers, since it gives them a better idea of when their car may run out of juice. The research is also good news for battery developers. "This improved accuracy will ... read more
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2012 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement|