Energy Storage

Over 26,000 register for World Solar Technology Summit tomorrow

The Summit will see the signing of four partnership agreements, including one between India’s Ministry of New and Renewable Energy, World Bank, and International Solar Alliance.

New cathode for sustainable, high-density lithium-sulfur batteries 

Shiv Nadar University researchers have synthesized sulfur-rich copolymers from petroleum and agricultural waste as cathode materials for Lithium-Sulfur (Li-S) batteries. IIT-Bombay, which is developing a Li-S battery prototype based on the technology, recorded an average Coulombic efficiency of 99.3% after 500 cycles at 1C, one hour rate of charge and discharge, for the cardanol/sulfur copolymer cathode containing 2.5wt% reduced graphene oxide (rGO).

The long read: The state of solid-state batteries

Solid-state batteries hold the potential to overcome many of the limitations of today’s lithium-ion storage technologies. Though they have been a research topic for more than 30 years, and more recently have seen billions of dollars poured into their development by leading carmakers and electronics giants, commercial development is still extremely limited. Major roadblocks remain in the way of both device performance and industrial-scale processing. pv magazine recently caught up with solid-state’s research community for a look at where the technology stands.

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Keltron to set up a supercapacitor manufacturing unit in Kannur

The state-owned electronics manufacturer has signed a memorandum of understanding for technology transfer with Vikram Sarabhai Space Centre of Indian Space Research Organisation.

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ISA to hold World Solar Technology Summit next month

The inaugural event will be attended by prime minister Narendra Modi, ministers from all the International Solar Alliance member countries and high-level dignitaries from global R&D institutions.

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Sona Comstar, IIT Delhi launch incubation program for EV startups

The program aims at supporting the development of innovative electric vehicle (EV) solutions like extending range through battery capacity improvements, and battery management, fast charging infrastructure, and mobile charging solutions for emergencies. Two startups shall be supported each year with up to INR 80 lakh each to complete proof of concept and develop prototypes. 

India to add 15 GW of wind-solar hybrid capacity in five years

Almost 10 GW of hybrid generation capacity is already under implementation despite India having only 100 MW of combined wind and PV projects at present, according to analyst Crisil.

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Lithium-ion storage is here to stay

A German-Israeli research group has gathered for three days to discuss which storage technologies may outperform lithium-ion batteries in the future. They concluded that there is no such a thing as a “post Li‐ion” era in sight. They recommended a “side‐by‐side” approach for multiple technologies in different applications, as well as the hybridization of technologies. The group highlighted the strong potential of redox flow storage, which in their view may outperform Li‐ion, although only for stationary applications.

Low-cost bio-inspired electrocatalyst for rechargeable metal-air battery

Indian scientists have developed a low-cost electrocatalyst based on iron, manganese and N-doped carbon derived from fish gills (Fe/Mn/N-FGC) that increased the performance of a homemade rechargeable zinc-air battery when used as the air cathode. The Fe/Mn/N-FGC cathode based battery achieved open-circuit voltage of 1.41 V and a large power density of 220 mW/cm2 at 260 mA/cm2 current density—compared to commercial platinum/carbon based battery’s 1.40 V and 158 mW/cm2—with almost stable charge-discharge voltage plateaus at high current density. 

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Europe’s Wamtechnik, ION Energy partner to enable electric excavator

The European Li-ion battery manufacturer has partnered with the Mumbai based battery management system provider on the design and deployment of an electric excavator that would operate in subzero temperatures (below -20°C).

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