Abstract: Disclosed in the present disclosure is a multi-sealed composite box structure, including: a box frame, including a side beam profile; a bottom protection plate layer, assembled to the box frame, and a side of the box frame assembled to the bottom protection plate layer being an assembling surface; a liquid cooling plate layer, positioned between the box frame and the bottom protection plate layer; a buffer layer, clamped between the bottom protection plate layer and the liquid cooling plate layer; at least two first edge sealing layers, sealed between the box frame and edges of the liquid cooling plate layer; and at least one second edge sealing layer, sealed between edges of the liquid cooling plate layer and edges of the bottom protection plate layer.

Abstract: A battery cell and a battery pack are provided. The battery cell includes a housing and a blocking member. The housing has a first accommodating chamber with an opening at one end, and the blocking member is an insulating member that is deformable at high temperature. The blocking member is connected to the housing and blocks the opening. A protrusion is provided on a side of the blocking member away from the housing, and the protrusion is configured to break through a weak region on a pressure relief passage. The battery pack includes the battery cell described above, and when the battery cell has thermal runaway, the blocking member is heated to melt and deform and separate from the housing to release the pressure inside the battery cell.

Abstract: Disclosed herein are trimetallic PtAu-based nanocatalysts for electrochemical hydrogen production and screening methods thereof. Nanocatalysts are produced through a polymer pen lithography (PPL) technique, which enables large-scale fabrication of nanoparticle arrays with programmable specifications such as size, shape, and composition, providing a route to the high-throughput screening and discovery of new catalysts.

Abstract: Provided herein are methods of preparing tetrahexahedra nanoparticles and methods of using the tetrahexahedra nanoparticles as an oxidative catalyst.

Abstract: Provided herein are methods of preparing tetrahexahedra nanoparticles and methods of using the tetrahexahedra nanoparticles as an oxidative catalyst.

Abstract: Disclosed herein are trimetallic PtAu-based nanocatalysts for electrochemical hydrogen production and screening methods thereof. Nanocatalysts are produced through a polymer pen lithography (PPL) technique, which enables large-scale fabrication of nanoparticle arrays with programmable specifications such as size, shape, and composition, providing a route to the high-throughput screening and discovery of new catalysts.