According to relevant information, Huawei Technologies Co., Ltd. has successfully obtained a patent titled "Composite Electrode Material, Preparation Method, Lithium Battery, and Electronic Device," with authorization publication number CN115832298B. The patent, filed in September 2021, can be used to improve the lifespan and safety of electronic products.
The abstract indicates that the core of this patent lies in the design and preparation method of a novel composite electrode material. This material consists of an electrode material core and an organic fiber skeleton. The organic fibers form abundant hydrogen bonds with the OH groups on the surface of the electrode material core, allowing the organic fibers to entangle with each other and securely bond to the electrode material core. This structure not only enhances the strength of the electrode material but also effectively limits its volume expansion during charge and discharge, significantly improving the battery's cycling stability.
Huawei emphasizes in the patent that the application of this technology will bring multiple advantages. First, the high strength and low tensile strain of the organic fiber skeleton can reduce plastic deformation during battery cycling, avoiding the bulging problem common in traditional lithium batteries. Furthermore, this can improve battery cycle stability, reduce the battery's footprint within electronic devices, and increase available space for key components like chips and circuit boards. This can prevent problems like battery bulging and back cover warping after long cycles, thereby extending the lifespan and safety of electronic products.
Huawei's patented technology is expected to provide new solutions for the development of lithium batteries in consumer electronics and new energy vehicles.
