Louie Baur Louie Baur is Editor at Long Beach Louie, a Long Beach Restaurant Review site as well as Skateboard Park. Find him on Twitter, Facebook, and Pinterest.

Researcherscreate batteries that last longer than should be possible

48 sec read

Researchers at the Department of Energy’s Oak Ridge National Laboratory have developed a new and unconventional battery chemistry aimed at producing batteries that last longer than previously thought possible. In a study published in the Journal of the American Chemical Society, ORNL researchers challenged a long-held assumption that a battery’s three main components – the positive cathode, negative anode and ion-conducting electrolyte – can play only one role in the device.

The electrolyte in the team’s new battery design has dual functions: it serves not only as an ion conductor but also as a cathode supplement. This cooperative chemistry, enabled by the use of an ORNL-developed solid electrolyte, delivers an extra boost to the battery’s capacity and extends the lifespan of the device. “This bi-functional electrolyte revolutionizes the concept of conventional batteries and opens a new avenue for the design of batteries with unprecedented energy density,” said ORNL’s Chengdu Liang. The team demonstrated the new concept in a lithium carbon fluoride battery, considered one of the best single-use batteries because of its high energy density, stability and long shelf life. When ORNL researchers incorporated a solid lithium thiophosphate electrolyte, the battery generated a 26 percent higher capacity than what would be its theoretical maximum if each component acted independently. The increase, explains Liang, is caused by the cooperative interactions between the electrolyte and cathode.

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Louie Baur Louie Baur is Editor at Long Beach Louie, a Long Beach Restaurant Review site as well as Skateboard Park. Find him on Twitter, Facebook, and Pinterest.

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