Large volume change, poor conductivity, and electrolyte soluble active materials intermediates have long been daunting challenges for sulfur, silicon, and silicon oxides electrode materials. A self-healable polyelectrolyte binder is exploited by crosslinking polydopamine, phytic acid and poly(acrylamideco-2-(Dimethylamino)ethyl acrylate) in situ at room temperature through reconfigurable hydrogen bonds and ionic bonds. Therefore, the crosslinked binder network can readily recover its mechanical strength without extra stimulus, offering a reliable strategy for electrodes plagued by large volume change issue. Sulfur (S) and silicon (Si) electrodes prepared using the selfhealable polyelectrolyte binder can effectively maintain its structure integrity after long-term cycling. In addition, the polar groups, especially negativecharged phosphate ions empower the polyelectrolyte binder as a more effective binder than commercial poly(vinylidene fluoride) in terms of restraining lithium polysulfides shuttling and accelerating lithium ion transportation, as evidenced by in situ UV-visible spectroscopy, density functional theory calculation and cyclic voltammetry. Consequently, high-active materials loading S cathode, Si and SiO-graphite anodes all achieve high area capacity and satisfying cycling stability by conveniently applying the advanced binder. This facile strategy for constructing multiuse binder illuminates versatile development in many energy storage systems.
Peri-implant bone thickness is a key factor for obtaining initial implant stability. The accuracy of its measurement has clinical impact. Radiological assessment of existence and integration of BAM would be of great benefit to the evaluation of augmentation procedures.
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