The team of researchers from the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Wu Zhongshuai, used low-cost, large-scale screen printing technology to prepare secondary water-based planar zinc-manganese micro-cells with good commercial application prospects, high flexibility, high safety and long life. Published in the National Science Review.
The development of a new generation of miniaturized, wearable electronic products has greatly stimulated the urgent need for new concepts, high-security, long-life micro-energy storage devices, especially flat-sized micro-batteries. The planarized micro-battery has the characteristics of high integration and integration, overcomes the shortcomings of the traditional sandwich configuration battery, such as large volume, poor mechanical flexibility and easy separation of the interface under bending. It is a new type of wearable electronic device power source with promising prospects. .
The team developed a low-cost, simple, efficient and large-scale screen printing technology, and successfully produced a new concept water-based planar zinc-manganese micro-battery with good mechanical flexibility, high safety and long life. They firstly used manganese dioxide, zinc powder and graphene as functional materials to dispose the positive and negative electrodes of zinc-manganese battery and graphene current-collecting thixotropic ink respectively, and then used multi-step screen printing to realize planarized zinc-manganese. Low-cost, large-scale preparation of micro-batteries.
The new zinc-manganese battery not only has the characteristics of environmental friendliness and high safety, but also exhibits an extremely long working life. In addition, the diversity of printed substrates can meet the needs of different application scenarios.