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Battery


— Electronics

Silk-derived material could boost battery performance

Next-generation lithium-ion batteries may hold more charge for a greater number of cycles thanks to a new material derived from natural silk. Scientists at the Beijing Institute of Technology found that not only does their regenerated silk fibroin material work for over 10,000 cycles but it also stores five times more lithium than graphite, which is the most common choice for the anode (negative electrode) in lithium-ion batteries. Read More
— Electronics

Energizer's "EcoAdvanced" batteries are partially made from recycled cells

Energizer has announced a new line of high-performance AA and AAA alkaline batteries that are in part made by recycling old cells, in what's claimed to be an industry first. Although currently only four percent of the battery comes from recovered materials, the plan for the company is to grow that percentage tenfold over the next 10 years and eventually use recycled materials in all its future cells. Read More
— Electronics

Peri Duo: iPhone battery and speaker case rolled into one

A new iPhone add-on devised by California-based company Peri aims to give iPhone users a double whammy: more battery power and sound volume, all for less cash. Called Peri Duo, it comes in the form of a case that integrates a speaker system and a 2,500-mAh battery. When detached from the phone, it becomes a speaker whose aural power is strong enough to disturb the neighbors. Read More
— Science

Ammonia-based battery system to convert low-grade waste heat into electricity

As modern power generation methods are designed to squeeze the most power from the least amount of fuel, engineers are constantly looking at techniques to improve efficiency. One way to achieve this is to scavenge waste energy left over from the production process to capture and convert low-grade heat into usable energy. In pursuit of this goal, engineers at Pennsylvania State University have produced an ammonia-based battery that not only captures and converts waste heat economically and efficiently, but is claimed to do so at a greater capacity than other similar systems. Read More
— Electronics

New electrolyte to enable cheaper, less toxic magnesium-sulfur-based batteries

There's another promising contender in the race to supplant the dominance of lithium-ion and metal-hydride based batteries in the world of energy storage. New research from the Karlsruhe Institute of Technology's (KIT's) Helmholtz Institute Ulm (HIU) details the development of an electrolyte that can be used in new magnesium-sulfur battery cells that would be more efficient and inexpensive than the dominant types of batteries in use today. Read More
— Electronics

Coating makes swallowing batteries safer for curious kids

It can be a herculean task to get kids to eat their vegetables, but they'll happily chow down on things they aren't supposed to. If one of those things is a button battery, serious injuries can result in the form of burns to the esophagus or tears in the digestive tract. Researchers may not have found a way to stop kids swallowing button batteries, but they have found a way to make such culinary no-nos safer. Read More
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