新型有机锂电池可在极端温度下正常工作

Core Insights - A new type of organic cathode material has been developed by a team from Tianjin University and South China University of Technology, overcoming key bottlenecks in traditional organic lithium batteries such as low energy capacity and practical usability [1][2] - The new organic electrode material, based on the n-type conductive polymer PBFDO, exhibits excellent electronic conductivity, rapid lithium ion transport capability, and high energy storage capacity, leading to a battery with an energy density exceeding 250 watt-hours per kilogram, surpassing the widely used lithium iron phosphate batteries [1][2] Group 1 - The main challenge with traditional lithium battery cathode materials, which primarily use cobalt and nickel, includes resource limitations, cost, safety, and lack of flexibility [1] - Organic electrode materials are seen as a promising "green battery star" due to their wide availability, flexible molecular design, and inherent flexibility [1] - The newly developed organic soft-pack battery demonstrates exceptional temperature adaptability, functioning normally in extreme temperatures ranging from -70°C to 80°C, while also providing good flexibility and safety [1][2] Group 2 - The organic battery has successfully passed rigorous safety tests, including puncture safety tests, maintaining its capacity without deformation during charging and discharging [2] - This breakthrough in battery technology addresses resource and environmental constraints, achieving high energy density comparable to commercial batteries while ensuring safety and a wide temperature range [2] - The flexible characteristics of the new battery material offer innovative energy storage solutions for flexible electronics and wearable devices [2]