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grid-storage Articles | Developments Today

GM is betting on battery cells that don't use lithium

GM Invests in Sodium-Ion Batteries for Grid Storage, Not EVs

GM Ventures invests in Peak Energy for sodium-ion battery cells.
Cells are for grid-scale energy storage, not EVs.
Sodium-ion offers lower cost and abundant materials vs lithium.
GM diversifies battery portfolio beyond lithium-ion.

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DT Editorial Team·Jun 11, 2026·via electrek.co

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Science Archives - Interesting Engineering

The Backyard Battery Revolution: Building Giant Grid Storage Out of Plain Iron Water

Iron-water flow batteries use abundant, cheap, and non-toxic materials.
The technology originated from electrolytic ironmaking for steel decarbonization.
They offer low cost ($20/kWh), safety, and scalability for grid storage.
Challenges include hydrogen evolution and lower energy density.

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DT Editorial Team·Jun 10, 2026·via interestingengineering.com

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GM Empower Event — GM Announces Sodium-Ion Grid-Scale Battery Storage Developed In The US - CleanTechnica

GM Unveils Sodium-Ion Grid-Scale Battery Storage in the US

GM announced sodium-ion grid-scale battery storage at a June 9 event in San Francisco.
The technology is developed in partnership with Peak Energy and supported by GM Ventures.
Sodium-ion cells offer wider temperature range, more cycles, and potential for no active cooling.
Prototyping begins this year at GM's Wallace Battery Cell Innovation Center in Warren, Michigan.

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DT Editorial Team·Jun 10, 2026·via cleantechnica.com

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US firm unveils 26-cell battery monitor to prevent battery failures

Texas Instruments Unveils 26-Cell Battery Monitor That Predicts Failures Before They Happen

Texas Instruments unveils BQ79731-Q1 battery monitor using EIS for early fault detection.
Monitors up to 26 cells, detects lithium plating, electrolyte decomposition, and internal shorts.
Claims up to 90% earlier detection than conventional methods, preventing thermal runaway.
Targets EVs, grid storage, and industrial applications; samples available now.

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DT Editorial Team·Jun 9, 2026·via interestingengineering.com

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China Researchers Report Water-Based Battery Chemistry With a Claimed 120,000-Cycle Lifespan

Researchers reported a neutral-electrolyte aqueous battery in Nature Communications.
The design uses covalent organic polymers with magnesium and calcium ions.
The team says the battery can last about 120,000 charge cycles.
The chemistry is positioned as a safer, nontoxic option for grid storage.

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DT Editorial Team·May 7, 2026·via livescience.com

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DT Editorial Team·May 7, 2026·via electrek.co

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DT Editorial Team·Apr 28, 2026·via cleantechnica.com

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DT Editorial Team·Apr 22, 2026·via utilitydive.com

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DT Editorial Team·Apr 22, 2026·via pv-magazine.com

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DT Editorial Team·Apr 7, 2026·via pv-magazine.com

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DT Editorial Team·Mar 11, 2026·4 min read·via pv-magazine.com

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ESS adds 8.5 GWh of sodium-ion to its battery storage portfolio

ESS Signals a Sodium-Ion Expansion With 8.5 GWh Added to Its Battery Storage Pipeline

ESS added 8.5 GWh of sodium-ion capacity to its battery storage portfolio.
The move signals an expansion beyond long-duration storage into short- and medium-duration markets.
The choice of sodium-ion highlights growing interest in alternatives to lithium-based storage.

More in Energy→

Chinese Iron Flow Storage Battery Is 80 Times Cheaper Than Lithium - CleanTechnica

Chinese Researchers Report Promising Low-Cost Iron Flow Battery Advance

A study describes an all-iron flow battery designed to improve long-term cycling stability.
Researchers say the system exceeded 6,000 cycles without capacity degradation and uses much cheaper materials than lithium alternatives.
Commercial viability still depends on broader validation beyond the lab.

More in Energy→

Kentucky utilities eye 266-MW pumped storage project as demand drives renewed interest

Kentucky Utilities Study $1.3 Billion Pumped Storage Project as Power Demand Climbs

LG&E and KU are studying Rye Development’s proposed 266-MW Lewis Ridge pumped storage project.
The project is estimated at $1.3 billion, or about $4.9 million per MW.
AI, industrial and manufacturing demand are renewing interest in long-duration grid storage.

More in Energy→

Rongke Power debuts 2 MW/8 MWh vanadium flow battery storage system

Rongke Power’s new vanadium flow battery pushes harder at the long-duration storage market

Rongke Power introduced a 2 MW/8 MWh vanadium flow battery system called TPower2000.
The company says the system maintains more than 81% DC-side efficiency at high current density and can scale from 2 MW to above 10 MW.
The launch is aimed at long-duration storage applications including renewable energy bases, peak shaving, and microgrids.

More in Energy→

Cornex unveils new 165 Ah sodium-ion prismatic cell for stationary energy storage

Cornex debuts 165 Ah sodium-ion cell aimed at grid-scale storage

Cornex introduced a 165 Ah sodium-ion prismatic cell for stationary storage.
The company says the cell is suited to frequency regulation and exceeds 20,000 cycles.
The launch adds momentum to sodium-ion efforts in grid-scale storage.

More in Energy→

Volkswagen launches first large-scale battery storage project in Germany

Volkswagen Launches First Large-Scale Battery Storage System

VW connects 20 MW/40 MWh battery storage at Salzgitter gigafactory
System integrates battery production, storage, and energy trading
Uses cells from PowerCo production lines at same facility
First of planned series of large-scale storage deployments

More in Energy→