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Batteries

Good Thinking

London Christmas tree powered by a Brussels sprout battery

You've probably seen a light powered by a lemon or a clock hooked up to a potato before, but a group in London recently built a similar device using a much smaller, less popular piece of produce. To promote The Big Bang UK Young Scientists & Engineers Fair, a team of designers built the world's first Brussels sprout-powered battery and hooked it up to a set of Christmas tree lights. Read More

Electronics

New lithium/sulfur battery doubles energy density of lithium-ion

Batteries. We buy them at the store, use them up, and throw them away without much thought. In reality, however, batteries are remarkably complex electrochemical devices that are continually evolving. The latest example of this comes from the Lawrence Berkeley National Laboratory, where researchers have invented an advanced lithium/sulfur (Li/S) cell that offers a unique combination of energy storage, power, recharge speed, and survivability. Read More

Electronics

Self-healing electrode coating could lead to longer-lasting batteries

In their continuing efforts to increase the energy density of lithium-ion batteries, scientists have began looking at alternative materials for those batteries' electrodes – materials such as silicon. The problem is, electrodes swell and shrink as they absorb and release lithium ions, causing them to break down over time. This is particularly true of silicon, which is brittle by nature. Now, however, scientists have developed a conductive elastic polymer coating for those electrodes, that heals its own cracks after each use. Read More

Science

Lithium-air batteries go viral for greater durability and performance

In recent years, lithium-air batteries that promise improved power density per pound over lithium-ion batteries have been the subject of much research in the quest to give electronic vehicles greater range. By enlisting the help of a genetically-modified virus, researchers at MIT have found a way to improve the performance and durability of lithium-air batteries, which offer the potential of two to three times the energy density of current lithium-ion batteries.Read More

Automotive

Volvo to replace body parts with energized carbon fiber panels

For automobile manufacturers, the electric elephant in the room continues to be bulky and weighty battery packs. This week, Volvo unveiled an innovative potential solution to the problem that it has been working on for the past three and a half years with other European partners; replace steel body panels with carbon fiber composite panels infused with nano-batteries and super capacitors. Read More

Automotive

Birò electric car's battery can be removed for charging indoors

Along with the ever-persistent problem of range anxiety, one of the things that keeps many people from taking electric cars seriously is the limited number of charging stations. What happens if your destination doesn't have one, or if you have to park your car out on the street when you're at home? In the case of some electric scooters and bicycles, users can remove the vehicle's battery and take it with them to charge indoors. Now, Italian automaker Estrima is offering that same feature in its Birò electric car.Read More

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