Energy Storage

Conceived by scientists in China, the battery was built with a special hydrogel electrolyte made of polyacrylamide (PAM), zinc sulfate (ZnSO4), glycerol (GL), and acetonitrile (AN). The device showed high cycling stability of over 3,000 cycles, a high reversibility thanks to a Coulombic efficiency of up to 99.5%, and electrochemical performance of 185 mAh·g over 10,000 cycles.

The complex will combine a 50MW photovoltaic plant with 128MWh of long-term green hydrogen storage and batteries. The solar part is described by the company as an agrivoltaic plant that will host a herd of 1,830 sheep.

Production for the HyDeal project is planned to start in 2025; the total installed capacity is expected to reach 9.5 GW of solar power and 7.4 GW of electrolyzers by 2030. Elsewhere in the world, India and Brazil are preparing rules and laws to promote green hydrogen, while research activities continue to increase hydrogen fuel cell’s efficiency and hydrogen’s use in the aviation sector.

Chinese manufacturer Bslbatt has unveiled a modular lithium-ion battery that can be used for the off-grid storage of solar energy. The device has a storage capacity ranging from 5.1 to 30.7 kWh and is claimed to provide steady operation for up to 6,000 charge cycles.

The list of planned gigawatt-scale battery cell manufacturing plants in Europe has grown, with Anglo-Korean battery maker Eurocell announcing plans for a gigafab in Western Europe to start manufacturing at scale within 12 months.

The Moss Landing Energy Storage Facility Phase II in the United States set off fire alarms that activated a fault water suppression system, triggering a cascading set of events that resulted in roughly 10 battery packs melting down.

Conceived for the storage of residential and large scale renewable energy, the device has a rated power of over 150mW/cm², an energy density exceeding 40Wh/L, and a power density of 72.5mW/cm². The battery was built with an anode made of inexpensive viologen and its cost, according to its creators, may be lower than $100/kWh.

A weekend fire caused by a lithium-ion home battery system in Adelaide, Australia, has prompted the authorities to urge solar and battery owners to be vigilant about system maintenance.

Microinverter provider Enphase has signed a deal with Swell Energy to participate in distributed virtual power plants in California, New York and Hawaii.

The U.S. battery specialist has signed framework agreements with four developers to deliver systems for multiple projects.