A collaborative team, led by Professor Xu Yunhua of Tianjin University and Professor Huang Fei of the South China University of Technology, along with researchers from other institutions, has successfully developed a novel type of organic cathode material. This breakthrough overcomes the key limitations of traditional organic lithium batteries, which have been hindered by low energy capacity and challenges in commercialization. Leveraging a newly designed n-type conductive polymer, the team has engineered an organic cathode material that integrates high electronic conductivity, rapid lithium-ion transport, and substantial energy storage capacity. This was achieved by optimizing the synergistic efficiency of electron and lithium-ion transport.

Additionally, the team has fabricated organic pouch cells with an energy density exceeding 250 watt-hours per kilogram. These cells not only outperform lithium iron phosphate batteries in terms of performance but also demonstrate exceptional temperature adaptability, flexibility, and safety. Experimental results reveal that the battery retains its capacity even when bent, and ampere-hour-level pouch cells have successfully passed the nail penetration safety test. This milestone lays a solid foundation for the advancement of green battery technologies and offers viable energy storage solutions for applications in flexible electronics and beyond. Currently, the team is actively expediting the commercialization and industrialization of their research findings.