Has any estimated market share been provided?
Yes, there are some estimates regarding the market share of vanadium redox flow batteries (VRFBs) in the energy storage market in China. According to research by the China Energy Storage Alliance, lithium-ion batteries dominated the market with 89.6% of the total installed energy storage capacity in 2021, while VRFBs accounted for only 0.9% [oai_citation:1,Vanadium redox flow batteries: a new direction for China’s energy storage? - Fastmarkets](https://www.fastmarkets.com/insights/vanadium-redox-flow-batteries-a-new-direction-for-chinas-energy-storage/).
However, the market share of VRFBs is expected to grow significantly in the coming years. Projections suggest that the penetration rate of VRFBs in energy storage could increase to 5% by 2025 and further to 10% by 2030 [oai_citation:2,Vanadium redox flow batteries: a new direction for China’s energy storage? - Fastmarkets](https://www.fastmarkets.com/insights/vanadium-redox-flow-batteries-a-new-direction-for-chinas-energy-storage/). This growth is driven by policies favoring safer and more sustainable battery technologies, significant investments in VRFB production facilities, and large-scale demonstration projects like those in Dalian and Hubei [oai_citation:3,First phase of 800MWh world biggest flow battery commissioned in China - Energy-Storage.News](https://www.energy-storage.news/first-phase-of-800mwh-world-biggest-flow-battery-commissioned-in-china/) [oai_citation:4,First Phase of 800MWH World Biggest Flow Battery Commissioned in China - World-Energy](https://www.world-energy.org/article/25949.html).
Despite the current small market share, the potential for VRFBs to expand is supported by China's large vanadium reserves and the country's strategic emphasis on renewable energy and long-duration energy storage solutions [oai_citation:5,Vanadium redox flow batteries: a new direction for China’s energy storage? - Fastmarkets](https://www.fastmarkets.com/insights/vanadium-redox-flow-batteries-a-new-direction-for-chinas-energy-storage/) [oai_citation:6,China’s largest solar-plus-flow battery project will be accompanied by VRFB ‘gigafactory’ - Energy-Storage.News](https://www.energy-storage.news/chinas-largest-solar-plus-flow-battery-project-will-be-accompanied-by-vrfb-gigafactory/).