2月18日，天津大学、华南理工大学等团队在《自然》（Nature）发表论文Practical lithium–organic batteries enabled by an n-type conducting polymer，报告他们研制出一种基于n型导电聚合物正极——聚苯并二呋喃二酮（PBFDO）——的实用化有机锂电池。该聚合物具有优异的混合离子-电子传输性能和低溶解性，可在-70℃至80℃的温度范围内高效工作。其实现了超高面载量聚合物正极（最高达206mg/cm²），面容量高达42mAh/cm²，且循环稳定性优异。研究团队还制备出实用化2.5Ah锂-有机软包电池，能量密度达到255 Wh/kg。
M4 brings a significant boost in performance to the new iPad Air, empowering users to be productive and creative wherever they are — from aspiring creatives working with large files to travelers editing content on the go. Featuring an 8-core CPU and a 9-core GPU, iPad Air is up to 30 percent faster than iPad Air with M3 and up to 2.3x faster than iPad Air with M1.5 Users will notice the blazing speed of M4 in everything they do — with Apple Creator Studio, compositing photos in Pixelmator Pro or editing video in Final Cut Pro is quicker than ever. With the 9-core GPU of M4, iPad Air supports second-generation hardware-accelerated mesh shading and ray tracing for incredible graphics performance. M4 delivers over 4x faster 3D pro rendering with ray tracing performance compared to iPad Air with M1, offering more accurate lighting, reflections, and shadows for extremely realistic gaming experiences.2
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Dawes was destined to shake up the food and beverage industry. Born to a mother who ran a health-food store, and a father who created a billion-dollar chip empire, her entire childhood revolved around the world of snacking—and how to make it better.
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