Efficient Biohybrid Batteries

Fast-Charging Hybrid Microbial Fuel Cell and CO2 Electrolyzer, Based on Formic Acid

02-Nov-2023 - Formic acid, which can be produced electrochemically from carbon dioxide, is a promising energy carrier. A Chinese research team have now developed a fast-charging hybrid battery system that combines the electrochemical generation of formic acid as an energy carrier with a microbial fuel cell. As ...

CO2 Catalysis Made More Accessible

An economical alloy-based aerogel as electrocatalyst for carbon fixation

03-May-2021 - Many industrial processes emit carbon dioxide into the atmosphere. Unfortunately, however, current electrochemical separation methods are expensive and consume large amounts of power. They also require expensive and rare metals as catalysts. A study in the journal Angewandte Chemie describes a ...

Anions Matter

Zinc-ion hybrid capacitors with ideal anions in the electrolyte show extra-long performance

18-Nov-2020 - Metal-ion hybrid capacitors combine the properties of capacitors and batteries. One electrode uses the capacitive mechanism, the other the battery-type redox processes. Scientists have now scrutinized the role of anions in the electrolyte. The results, which have been published in the journal ...

Electrochemical extraction of energy from seawater

Power generator autonomously switches between two functional modes

15-May-2019 - Underwater vehicles, diving robots, and detectors require their own energy supply to operate for long periods independent of ships. A new, inexpensive system for the direct electrochemical extraction of energy from seawater offers the advantage of also being able to handle short spikes in power ...

Recharging on stable, amorphous silicon

12-Oct-2016 - Next-generation anodes for lithium ion batteries will probably no longer be made of graphite. Silicon, which is a related material, can provide a much higher capacity than graphite, but its crystallinity poses problems. Chinese scientists have introduced a porous silicon form that is amorphous, ...