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

The Chinese company says the new product targets long-duration storage, grid support, and GWh-scale deployment. April 21, 2026 Vincent Shaw Image: Rongke Power, WeChat From ESS News alian Rongke Power introduced what it described as the world’s highest-power single vanadium flow battery storage system in Beijing, positioning the new product for long-duration storage projects tied to renewable energy bases, grid-side peak shaving, and microgrids. According to a statement by the company that the...
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Envision unveils 12.5 MWh BESS, begins 790 Ah cell output

China’s Envision has launched a 12.5 MWh battery storage system and started production of a 790 Ah lithium iron phosphate (LFP) cell, as it advances an AI-driven storage strategy. April 9, 2026 Vincent Shaw Image: ESS News From ESS News Envision has launched a 12.5 MWh battery energy storage system (BESS) and announced the start of production for a 790 Ah storage cell at ESIE 2026 in Beijing. The company said the EN 12.5 MWh system integrates battery cells, power conversion systems (PCS), batt...
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Chinese researchers report 700 Wh/kg lithium-metal battery

A team from Nankai University and the Shanghai Institute of Space Power-Sources has developed a hydrofluorocarbon electrolyte enabling lithium-metal cells to operate at temperatures as low as -70 C. April 2, 2026 Vincent Shaw Image: Pexels From ESS News A research team led by Nankai University and the Shanghai Institute of Space Power-Sources has reported a hydrofluorocarbon (HFC) electrolyte that enabled lithium-metal pouch batteries with energy density above 700 Wh/kg while maintaining operati...
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China’s top regulators summon battery giants, warn against ‘below-cost’ price wars

Four agencies told 16 leading firms to rein in irrational competition as China tightens oversight of power and storage batteries. January 19, 2026 Vincent Shaw...
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World-first 560C Carnot battery unveiled as SPIC launches ultra-high-temperature heat storage

Chinese state-owned power group SPIC has launched a 1 MW / 4 MWh pilot, showcasing a long-duration energy storage alternative to conventional lithium-ion batteries and compressed air energy storage (CAES). January 12, 2026 Vincent Shaw Image: SPIC, WeChat From ESS News China’s State Power Investment Corp (SPIC) says it has commissioned what it calls the world’s first ultra-high-temperature heat-pump energy storage system, branded “Chuno,” after completing a megawatt-scale pilot and t...
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China to abolish solar export tax rebates in April

China will scrap value-added tax export rebates for PV products from April 1, 2026, while cutting battery rebates ahead of a full phaseout, raising export costs for manufacturers and potentially pulling shipments forward into early 2026. January 9, 2026 Vincent Shaw China will eliminate value-added tax (VAT) export rebates for photovoltaic products from April 1, 2026, according to a joint notice released on Jan. 9 by the Ministry of Finance of the People’s Republic of China and the State Taxat...
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Corrosion-free bromine flow battery promises longer life and higher energy density

A new two-electron bromine chemistry sharply cuts corrosion while boosting performance, opening a clearer path for zinc–bromine flow batteries at grid scale. January 6, 2026 Vincent Shaw Image: DICP From ESS News Researchers at Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, have developed a new bromine-based flow battery chemistry that addresses one of the technology’s longest-standing barriers: severe corrosion caused by free bromine during charging. The team repo...
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Hithium pushes into long-duration storage and AI data centres with 1,300Ah cell, 6.9 MW/55.2 MWh system, and lithium-sodium hybrid

Chinese battery maker Hithium unveils 1300Ah cell, integrated long-duration system, and lithium-sodium LDES solution for AI data centers. December 15, 2025 Vincent Shaw Image: Hithium From ESS News At its annual Ecosystem Day on December 12, Hithium Energy Storage signaled a strategic improvement beyond conventional four-hour batteries, positioning long-duration storage as both a grid asset and a foundation for energy-intensive artificial-intelligence infrastructure. The company introduced three...
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China powers up nation’s largest standalone battery storage project

A 500 MW/2,000 MWh lithium iron phosphate battery energy storage system has entered commercial operation in Tongliao, Inner Mongolia, after five months of construction, with total investment of CNY 1.5 billion ($212.2 million) and designed for peak shaving and renewable integration. December 8, 2025 Vincent Shaw Image: China Conch From ESS News A 500 MW/2,000 MWh standalone battery energy storage system (BESS) in Tongliao, Inner Mongolia, has begun commercial operation following a five-month con...
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Battery shortage intensifies as 100 Ah cells sell out into 2026

Orders for small-format 100 Ah cells now stretch into early 2026, with prices up more than 20% as demand outpaces capacity despite aggressive expansion by Chinese battery majors. October 29, 2025 Vincent Shaw Image: JinkoSolar From ESS News China’s battery champions are racing to add capacity as a tightening supply of small-format cells ripples through the global energy storage market. At an online briefing on October 20, Contemporary Amperex Technology (CATL) told investors it was “fully ad...
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