Shenzhen ZH Energy Storage Technology

One of the biggest challenges in ion exchange membranes has always been the trade-off between conductivity and selectivity. Microporous confinement strategies may offer a fundamentally different approach — and could become an important direction for next-generation membrane technologies in flow batteries, green hydrogen, lithium extraction, and beyond.

Shipment Snapshot (15th May, 2026) | Five months after the first batch of stacks was delivered, a Chinese state-owned energy group reorders 3 units of 16kW stack. #FlowBattery #FlowBatteryStack #VanadiumRedoxFlowBattery #EnergyStorage #LongDurationEnergyStorage #BatteryManufacturing #ElectrochemicalEnergyStorage #GridStorage #CleanEnergy

High-current-density electrolysis is not only about increasing power input, it also places demands on membrane conductivity, chemical stability, gas crossover control, and long-term durability. In our latest website article, we share how Porimion membranes are being applied in high-current-density electrolysis stacks, the core advantages of the membranes, together with practical test data from real operating conditions. For teams working on electrolysis, hydrogen, or advanced electrochemical systems, this is a practical look at how membrane selection affects real system performance. https://lnkd.in/g-zT6fiE #Electrolysis #Electrolyzer #Hydrogen #MembraneT #ElectrochemicalEngineering #CleanEnergy #EnergyStorage #FlowBattery #HydrogenProduction

ZH Energy's SPEEK membrane has recently become a best-seller on its international sales platforms. The feedback is mainly driven by stable performance, low swelling behavior, and practical cost-performance balance for flow battery applications. The sulfonated polyether ether ketone (SPEEK) membrane is a high-performance non-fluorinated ion-exchange membrane based on a sulfonated PEEK backbone, specifically developed for flow battery systems. The arrangement of ether bonds, ketone groups, and aromatic rings gives the membrane strong adaptability under electrochemical operating conditions. Compared with many other non-fluorinated ion-exchange membranes, SPEEK shows lower swelling behavior, helping avoid performance degradation caused by membrane expansion. Applications include: Zinc–manganese flow batteries Zinc–bromine flow batteries Zinc–iron flow batteries All-iron flow batteries Electrodialysis separation systems Key features: 1. Low swelling behavior, high mechanical strength, and strong chemical stability; ion selectivity can be adjusted through sulfonation degree 2. Customizable sulfonation degree, thickness (15–100 μm), and membrane area to match different flow battery chemistries and system designs #FlowBattery #FlowBatteries #IonExchangeMembrane #SPEEK #NonFluorinated #EnergyStorage #Electrochemistry #BatteryEngineering #LongDurationEnergyStorage #VanadiumFlowBattery

Shipment Update: 2 kW Custom Flow Battery Stack Delivered. A custom 2 kW flow battery stack has been successfully shipped to a university research group (non-vanadium chemistry). For R&D and testing, it is often difficult to find stacks that match specific experimental requirements. This unit was designed and built to meet defined operating conditions and performance targets. We support customization across a wide power range, based on application needs, system conditions, dimensions, and performance parameters—suitable for laboratory testing, validation, and experimental development. Delivered stacks to date include: 3 W, 20 W, 60 W, 100 W, 500 W, 1 kW, 2 kW, 2.5 kW, 5 kW, 10 kW, 16 kW, 32 kW, across multiple chemistries. #FlowBattery #EnergyStorage #BatteryEngineering #CustomBattery #NonVanadium #FlowBatteryStack

ZH Energy completed and shipped a 10,000 m³/year vanadium electrolyte electrochemical production line to a European customer. The system is integrated in a 20-ft container, with full-process digital control and real-time monitoring, supporting automated operation. It adopts a modular architecture, with capacity scalable from 3,000 to 60,000 m³/year. ZH Energy has delivered several vanadium electrolyte production lines in domestic and international projects. Original article link on our company website: https://lnkd.in/g6DbcQag #VanadiumElectrolyte #ElectrolyteProduction #BatteryProduction #FlowBattery #VanadiumRedoxFlowBattery #EnergyStorage #ProcessEngineering

We support iron–chromium flow battery development: precise test equipment for material screening, mechanism study, performance validation, and system integration—helping make engineering data more usable across R&D and scale-up. Check how we support this from the original article on our website👇 https://lnkd.in/gGNghSHa #IronChromiumFlowBatteries

Our SPEEK membranes have become one of our most requested products. Samples are available from 10 × 10 cm, with repeat orders observed. See the image below for an overview, key technical parameters, and price indications. #SPEEK #Membrane #FlowBattery

These are the 3W and 20W single-cell systems we showcased at ESIE 2026 (Energy Storage International Conference and Expo) held last week in Beijing. · Simple structure, easy assembly and disassembly, suitable for frequent lab testing · Optimized flow field design improves efficiency, with significantly higher single-cell energy efficiency compared to no-flow-field designs · Multiple configurations available to meet different power-level testing needs · Supports high-throughput testing; customizable high-throughput flow battery test platforms available The small-scale testing system includes: Single cell (3W / 20W / 100W test fixtures, flow frames, bipolar plates, proton exchange membranes, graphite felt electrodes), electrolyte tanks, electrolyte pumps, and piping system

On April 1, the 14th Energy Storage International Conference & Expo (ESIE 2026) opened in Beijing. During the event, Shenzhen ZH Energy Storage Technology Co., Ltd. was among the companies presented with certifications by SGS. Its FStack series flow battery stacks were certified to both UL 1973 and IEC 62932-2-2. The certification covers the full FStack range (FStack-35, FStack-32, FStack-16, and FStack-10), corresponding to different stack configurations. It indicates alignment with international requirements in safety, reliability, and technical performance. During the ceremony, Dr. Wei Xie, Founder and Chief Scientist of ZH Energy, noted that the certification reflects the team’s continued focus on flow battery technology, as well as its approach to safety and product quality. The FStack series has been deployed in more than ten countries, with ongoing collaborations across different applications. The stacks are developed in-house, covering material selection, structural design, manufacturing, and testing. This integrated approach helps maintain consistency and quality across production. Each batch undergoes multiple rounds of performance and safety testing before delivery to support stable operation in practical use. #Stack #FlowBattery