碳基柔性储能器件实验室

The Zhiqiang Niu Group

Lab of Aqueous Battery

The Zhiqiang Niu Group--牛志强课题组 Research
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Aqueous  zinc  battery  shows  great  promising in the field of  large-scale  energy  storage  due to its  high safety and low cost. However, there are still   some challenges in the design of aqueous  zinc   battery. In  their  cathodes,  the  active materials often suffer from  sluggish  kinetics and structural destruction during the charge/discharge process, hindering the rate capability and cycling lifetime.To overcome these issues, some creative strategies were  developed  to  modify the structure of active materials,  such  as  ion doping, nano-carbon composite, crystal structure regulation and molecular design. In addition, in zinc anodes, zinc dendrite and hydrogen evolution often take place, which also degrade the lifetime of aqueous zinc batteries. Therefore, highly stable interface between Zn anodes and electrolytes were designed by optimizing electrolytes and constructing artificial Interface layer on Zn anode surface. Based on above cathodes and anodes, high-capacity zinc pouch cells were assembled. Furthermore, to extend application scenarios, flexible and smart aqueous zinc batteries were designed.


1. Aqueous Zinc-Ion Batteries



2. Flexible and Smart Energy Storage Devices    


                                                Flexible Zinc-based Batteries                                    Self-Healing Zinc-Ion Batteries


3. Other Aqueous Energy Storage Systems


Aqueous Ammonium-Ion Batteries


  

Aqueous Manganese-Ion Batteries


4. Programmable Nanocarbon-based Architectures


     

                   Flexible Composite Papers              Large-Area Graphene-Based Composite Film