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Posted: September 15, 2008

New Electrode Structure From QuantumSphere Extends Li-Ion Battery Capacity Up To Five Times

(Nanowerk News) QuantumSphere, Inc., a leading developer of advanced catalyst materials, electrode devices, and related technologies and systems for portable power and clean-energy applications, today announced that it has filed a key patent for technology it has developed that extends the capacity of rechargeable lithium ion batteries up to five times. Next-generation batteries featuring this technology could dramatically improve the operating life of portable consumer electronics, hybrid-electric vehicle range, and a wide variety of energy storage applications.
This news follows a previous QuantumSphere battery announcement highlighting the development of a high-rate, paper-thin, nano-enabled electrode for disposable batteries. This earlier breakthrough patent pending air-electrode design increased power output by 320% in zinc-air cells, providing roughly 4x more power than equivalent sized alkaline batteries, and is expected to be commercialized in 2009.
“The electrodes our company is developing will expand battery capacity in a profound way, without a sacrifice in safety. Instead of four hours of operating time on a laptop computer, a single charge could last up to 12 hours and provide users with enough computing time for a complete round-trip flight between Los Angeles and New York,” said Kevin Maloney, president and CEO of QuantumSphere. “This important research is another example of QuantumSphere’s focused plan to bring next-generation, high-capacity lithium ion battery systems to market. We believe this is a commercially viable technology that will have a major impact in a variety of consumer, industrial, and transportation applications.”
Today’s patent filing covers a novel electrode structure enriched with nano lithium particles that increases the fuel source in a rechargeable lithium ion battery, thus increasing battery life. QuantumSphere intends to commercialize the technology to improve next-generation batteries for energy storage, consumer, and transportation applications.
“QuantumSphere has created electrodes with much higher lithium capacities than current state-of-the-art lithium ion batteries, as described in this patent application,” said Subra Iyer, principal technologist and co-inventor at QuantumSphere. “In the next phase of the QuantumSphere research efforts, we will further improve these anode and cathode electrodes and formulate electrolytes with wide electrochemical windows. All of this is part of a structured research approach to create new high-voltage battery chemistries, enabling both higher energy density and higher power density in next-generation rechargeable lithium ion batteries, taking advantage of the newly improved anode, cathode, and electrolyte molecular architectures.”
About QuantumSphere, Inc.
QuantumSphere, Inc. (QSI) is a leading manufacturer of advanced catalyst materials, high- performance electrode systems, and related technologies for portable power, clean energy, and electronics applications. Backed by a strong intellectual property portfolio, the Company’s system designs and products can lower costs and enable breakthrough performance in such multi-billion dollar growth markets as batteries, fuel cells, desalination, hydrogen generation, and emissions reduction.
Founded in 2002, QSI is driven by a mission to reduce dependence on non-renewable energy sources through continuous innovation and refinement of its highly engineered catalytic materials, electrode systems, and advanced technology platforms. QSI serves leading industry customers with its patented, automated, highly scalable, and environmentally friendly manufacturing processes. For more information, please visit
Source: QuantumSphere (press release)
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