The active material coated inside the battery is a key component of the battery operation. Because the conventional battery has a fixed shape, the binding between the active material and the conductive substrate is relatively strong. However, when the battery is flexible, the coated active material is likely to come off. , And then affect the normal use of the battery. In recent years, flexible wearable electronic devices and ideas have been rapidly developed, prepared in the bending, the internal active material does not fall off the battery is the development of flexible devices need to be solved.
Recently, the Research Institute of Energy Storage Technology of the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, reported on a new process for preparing flexible batteries. They use electroless plating technology to directly bond the active material to the conductive substrate. When the battery is randomly bent, no active material is produced. Shedding, showing good flexibility, the battery can be applied to flexible electronic devices. Electroless plating technology is a more mature surface coating technology, widely used in chemical, aviation, medical equipment and other fields, the technology Uniform coating, flexible composition, suitable for non-metallic substrates, etc. Traditional battery is coated with active material with a binder on a conductive substrate. The research team changed the coating method and electroplated the metal film. On active materials, this process technology has the advantages of low preparation cost and ease of practical application, which lays a foundation for the future industrialization of flexible batteries. The above work was published in Advanced Functional Materials.
