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The steadily growing electric vehicle market is a driving force in low‐cost, high‐energy‐density lithium‐ion battery development. To meet this demand, LiNi0.975Al0.025O2 (LNA), a high‐energy‐density and cobalt‐free cathode material, has been developed using a low‐cost and efficient co‐precipitation and lithiation process. This article explores how further processing (i.e., washing residual lithium...
Rheological Tunable Magnetic Fluids
In article number 2204609, Hong Yang, Quan Li, and co‐workers design a magnetic fluid by using oleic acid coated Fe3O4 nanoparticles as the magnetic particles, and the amphiphilic penta block copolymer‐based aqueous solution as the carrier fluid. This magnetic fluid possesses outstanding long‐term stability and reversible rheological changes between the low‐viscosity...
Magnetic fluids have advantages such as flow ability and solid‐like property in strong magnetic fields, but have to suffer from the tradeoff between suspension stability and flow resistance. In this work, a thermal/photo/magnetorheological water‐based magnetic fluid is fabricated by using oleic acid‐coated Fe3O4 (Fe3O4@OA) nanoparticles as the magnetic particles and the amphiphilic penta block copolymer...
Stable lithiophilic sites in 3D current collectors are the key to guiding the uniform Li deposition and thus suppressing the Li dendrite growth, but such sites created by the conventional surface decoration method are easy to be consumed along with cycling. In this work, carbon fiber (CF)‐based 3D porous networks with built‐in lithiophilic sites that are stable upon cycling are demonstrated. Such...
Exosomes are recognized as promising biomarkers for early cancer diagnosis and prognosis owing to a large amount of biological information they carried. But the key is that single type of exosomal biomarker analysis is not sufficient enough for accurate cancer diagnosis and stage monitoring due to the insufficient information and high false positive signal. To address the challenge, here simultaneous...
A straightforward, inexpensive, and reliable approach to pattern electrospun nanofibers via solvent‐containing agarose hydrogel stamps is reported. Complex hierarchical microstructures can be further constructed via appropriate multistep permutation of microcontact patterning and electrospinning. As a proof‐of‐concept application, the patterned electrospun nanofibers are employed to spatially coordinate...
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