Abstract: Disclosed are a lithium ion battery negative electrode material and a preparation method therefor. The negative electrode material comprises SiOy (0.2<y<0.9) and an M compound, wherein M is a metal. The method of the present application comprises: subjecting a raw material comprising a SiOx material and the metal M to a redox reaction, wherein the O/Si ratio, i.e. x, of the SiOx (0.5<x<1.5) material is adjusted to y (0.2<y<0.9), and at the same time, the metal M is oxidized to obtain the M compound.

Abstract: Provided are a composite material and a preparation method thereof, a negative electrode material, and a lithium ion battery. The negative electrode material includes at least one composite material, and the lithium ion battery includes at least one composite material. The composite material has a core-shell structure composed of an inner core and a hydrophobic coating layer, with the inner core including at least one lithium-containing silicon oxide, and the hydrophobic coating layer being used to cover the inner-core material.

Abstract: Disclosed in the present application is a compound, comprising nano silicon, a lithium-containing compound and a carbon coating, or comprising nano silicon, silicon oxide, a lithium-containing compound, and a carbon coating. The method comprises: (1) solid-phase mixing of carbon coated silicon oxide with a lithium source; and (2) preforming heat-treatment of the pre-lithium precursor obtained in step (1) in a vacuum or non-oxidising atmosphere to obtain a compound. The method is simple, and has low equipment requirements and low costs; the obtained compound has a stable structure and the structure and properties do not deteriorate during long-term storage, a battery made of cathode material containing said compound exhibits high delithiation capacity, high initial coulombic efficiency, and good recycling properties, the charging capacity is over 1920 mAh/g, the discharging capacity is over 1768 mAh/g, and the initial capacity is over 90.2%.

Abstract: Described herein are novel alumina substrate-supported thin film SOFCs that may be produced at significantly reduced cost while providing improved robustness, high electrochemical performance, and the capability of effective carbon deposition resistance while still using Ni-cermet as an anode functional layer.

Abstract: Described herein are novel alumina substrate-supported thin film SOFCs that may be produced at significantly reduced cost while providing improved robustness, high electrochemical performance, and the capability of effective carbon deposition resistance while still using Ni-cermet as an anode functional layer.

Abstract: Solid oxide fuel cells that include an alumina substrate as support are described. The alumina substrate supported SOFCs can exhibit desirable electrochemical characteristics including high performance at intermediate temperatures and excellent thermal stability. The alumina substrate support is formed according to a modified phase-inversion process that forms a series of aligned micro-channels extending from a first side to a second opposite side of the support enabling gas distribution between an electrode (e.g., an anode) located on one side of the alumina substrate and the other, opposite side of the alumina substrate.

Abstract: A method for forming tubular solid oxide cells is described. The methods include co-extrusion of an electrode precursor and a sacrificial material to form a multi-layered precursor followed by phase inversion and sintering to remove the sacrificial layer and form an electrode substrate for use in a tubular solid oxide cell. Upon phase inversion and sintering of the precursor, a micro-channel array can be generated in the electrode that is generally perpendicular to the tube surface. The open pored micro-scale geometry of the porous electrode substrate can significantly reduce resistance for fuel/gas transport and increase effective surface area for electrochemical reactions.

Abstract: An intelligent control method of HVAC computer room is disclosed, including steps of: constructing an integrated central processing device, which controls start-stop operations of start-stop devices of each one of equipments, and controls each display unit to display parameters; displaying datas of a sensor unit; controlling the whole system's start-stop operation and the operation of a system protective module, via an one key type start-stop device, and controlling the integrated central processing device through a remote control module. The method in disclosure possesses functions of start-stop with one key, remote control, automatic operation of devices, unmanned operation, and functions of remote checking on operation states, system protection and operation state informations.

Abstract: The present invention discloses an intelligent online fault detection and early warning method for a heating and ventilation machine room. A data processing center and a data collection center are established, and various signal collection units are respectively arranged in each device part of a pipeline system and an electrical system of the heating and ventilation machine room; the data collection center collects signals collected by the signal collection unit in each device part and transmits the signals to the data processing center; and the data processing center processes the signal collected by each signal collection unit through a program and performs fault judgment and early warning.

Abstract: The present invention discloses a design method of an integrated box-type self-contained machine room. The design method comprises the following steps: firstly, selecting equipment parts in line with needs according to requirements of a design drawing for an HVAC system; secondly, optimizing, assembling and connecting the equipment parts, except a host air conditioner, a boiler and a cooling tower; thirdly, integrating the optimized, assembled and connected equipment parts into a protective housing; and finally, integrally testing a water pressure of the protective housing, the equipment parts and joints after washing the protective housing, the equipment parts and the joints, and transporting the same to an installation site of the HVAC system after the water pressure test passes the inspection. The method provided by the invention can improve the installation efficiency of an HVAC machine room and shorten the installation period of the HVAC machine room.

Abstract: An intelligent control method of HVAC computer room is disclosed, including steps of: constructing an integrated central processing device, which controls start-stop operations of start-stop devices of each one of equipments, and controls each display unit to display parameters; displaying datas of a sensor unit; controlling the whole system's start-stop operation and the operation of a system protective module, via an one key type start-stop device, and controlling the integrated central processing device through a remote control module. The method in disclosure possesses functions of start-stop with one key, remote control, automatic operation of devices, unmanned operation, and functions of remote checking on operation states, system protection and operation state informations.