Coaxial 3D-printing constructing all-in-one fibrous lithium-, sodium-, and zinc-ion batteries
CHEMICAL ENGINEERING JOURNAL(2022)
摘要
For battery manufacturing, 3D printing has merits of the unique intelligent and continuous characteristics. To construct the battery anode, cathode, and electrolyte network skeletons simultaneously via one-step 3D printing is a promising development direction. Here, a universal coaxial 3D printing approach was applied to construct the all-in-one fibrous lithium-ion batteries (LIBs), sodium-ion batteries (SIBs), and aqueous zinc-ion batteries (AZIBs) skeletons in one-step. The obtained anode, cathode, and separator inks can be scaled up to kilograms scale and have the obvious shear thinning characteristics, which are conducive to the large-scale coaxial 3D printing. Moreover, all the 3D printing constructed all-in-one fibrous LIBs, SIBs, and AZIBs have good electrochemical performances. The obtained all-in-one fibrous LIBs exhibit the capacity of 60 mAh g(-1), high-rate capability up-to 510 mA g(-1) with 33 mAh g(-1), and long cycle stability up-to 1000 cycles. Meanwhile, the all-in-one fibrous SIBs deliver the high capacity (50 mAh g(-1)), high-rate capability (31 mAh g(-1) at 500 mA g(-1)), and long cycle stability (2000 cycles). Similarly, the prepared AZIBs reveal the high capacity (121 mAh g(-1)), high-rate capability (68 mAh g(-1) at 1600 mA g(-1)), and long cycle stability. This coaxial 3D printing strategy to construct all-in-one fibrous filaments provides a new method for the functional fibrous energy storage system.
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关键词
Coaxial 3D-printing,All-in-one fibrous batteries,Lithium-ion batteries,Sodium-ion batteries,Zinc-ion batteries
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