Advanced two‐dimensional nanosheets that promote the dynamic transportation and storage capacity of ions are significant for high‐performance electrochemical capacitors (ECs). However, such materials often possess a low energy density. We have developed an ordered heteroarchitecture of molybdenum disulfide‐carbon nanotubes (MoS2‐CNTs) in which CNTs are vertically grafted within a MoS2 framework by C−Mo covalent bonds. Benefiting from this in situ vertical bridge, high‐speed interlaminar conductivity, unimpeded ion‐diffusion channels and sufficient pseudocapacitive reactivity, the MoS2‐CNTs presents ultralarge capacitance (5485 F g−1) and good structural stability in potassium hydroxide electrolyte. Moreover, the all‐unified solid‐state flexible ECs obtained through direct‐write printing construction deliver high energy density (226 mWh g−1), good capacitance (723 F g−1) and stable high/low‐temperature operating ability, which can power a wearable health‐monitoring device.

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Advanced two-dimensional nanosheets that promote the dynamic transportation and storage capacity of ions are significant for high-performance electrochemical capacitors (ECs). However,s uch materials often possess al ow energy density.W eh ave developed an ordered heteroarchitecture of molybdenum disulfide-carbon nanotubes (MoS 2 -CNTs) in which CNTs are vertically grafted within aM oS 2 framework by CÀMo covalent bonds.B enefiting from this in situ vertical bridge,h igh-speed interlaminar conductivity,u nimpeded iondiffusion channels and sufficient pseudocapacitive reactivity, the MoS 2 -CNTs presents ultralarge capacitance (5485 Fg À1 ) and good structural stability in potassium hydroxidee lectrolyte.Moreover,the all-unified solid-state flexible ECs obtained through direct-write printing construction deliver high energy density (226 mWh g À1 ), good capacitance (723 Fg À1 )and stable high/low-temperature operating ability,w hich can power aw earable health-monitoring device.

Energiespeicherung Im Forschungsartikel auf S. 21465 berichten Guan Wu, Jianhong Xu, Ningzhong Bao et al. über eine kovalent ausgerichtete MoS2‐Kohlenstoffnanoröhren‐Architektur für elektrochemische Hochleistungskondensatoren.