Energy Storage

Developed by a Chinese-Swedish research group, the device is an ultra-thin chip that could be integrated into electronics such as headphones, smartwatches and telephones. It combines a Molecular Solar Thermal Energy Storage System (MOST) with a micro-fabricated system that includes a thermoelectric generator (TEG) with a low-dimensional material-based microelectromechanical system (MEMS).

A major Western Australian mine targeting the global vanadium battery market was this week found to be bankable, with feasibility studies confirming the project’s “strong commercial case for development,” its owner Australian Vanadium Limited said.

Conceived by a German start-up, the system is claimed to achieve a 75% efficiency in converting direct radiation into heat. It may be either equipped with solar trackers or photovoltaic modules, which would both occupy the same space on the front and lateral sides of the installations.

US researchers have proposed the use of hydraulically fractured oil and gas wells to store renewable energy via compressed natural gas, with the levelized cost of storage potentially coming in at $70/MWh and $270/MWh. They said wells could also be used to store other renewable gases such as carbon dioxide or hydrogen in the future.

A startup incubated at the Indian Institute of Technology Kanpur has introduced ZincGel battery tech, which could offer significant savings for owners of two-wheel electric vehicles.

Bosch’s new solid oxide fuel cell prototype has an electrical efficiency of more than 60% and an overall efficiency above 85%. It also has a targeted power output of 10 kW and can produce up to 3 kW of thermal energy.

Everfuel has signed a deal to build a hydrogen refueling station in Germany, while the European Hydrogen Backbone initiative has accelerated its own program to produce 20.6 million tons of renewable, low-carbon European hydrogen. Separately, the UK government published its hydrogen investor roadmap to 2030.

In other news, GM and Honda are jointly developing affordable EVs, the Biden administration holds an EV industry meeting, and Mercedes-Benz Energy agrees to supply EV batteries to BatteryLoop for its scalable, circular energy storage products.

Scientists in Spain have developed a new heat pump that can produce 6.49 kWh of heat for each kilowatt-hour of power it consumes. The device could generate hot water at a temperature of up to 75 C.

Swiss Clean Battery is set to start commercial production of its pure solid state batteries in Switzerland. The batteries are based on a protected electrolyte made of a solid ion conductor, which helps to maintain internal resistance and capacity. The fixed ion conductor is formed in the battery cell itself, similar to a multi-component adhesive.