36results about How to "Electrode area is small" patented technology

An ear plug for arrangement in an ear canal includes at least two electrodes for detecting an EEG signal from a skin surface when the ear plug is arranged in the ear canal. The ear plug further includes a housing having an outer wall made from a resilient material, and a signal acquisition circuit. The electrodes are provided with a skin contact part arranged on an outside surface of the housing and connected through the outer wall of the housing to a supporting member on the inner part of the housing. The skin contact part and the supporting member are arranged for clamping the outer wall.

The invention relates to a material for detecting indoor organic gas and a method for preparing a gas-sensitive element using the same. The material comprises the following components by weight percent: 3-8 percent of silver nitrate, 4-11 percent of cadmium nitrate and the balance of SnO2 base material. The gas-sensitive element which is prepared by the sensitive material and is used for detecting indoor organic gas can detect residual micro organic gas after indoor decoration, has a better sensitive signal, can greatly reduce the detection limiting concentration of the organic gas, has small volume and is beneficial to micromation.

The invention discloses a microbial electrosynthesis reactor for electrolytic hydrogen gas bubble tower and its use method. The reactor consists of an electrolytic cell at the bottom, a bubble tower at the upper end, and a gas-liquid contact vacuum fiber on the catholyte external circulation system. Composed of membrane modules and pH controllers. The electrolytic cell placed at the bottom of the reactor provides micro-nano hydrogen bubbles for the bubble tower, and the microorganisms suspended in the bubble tower convert hydrogen and CO 2 into corresponding organic compounds. The device of the present invention is suitable for H 2 mediated microbial CO 2 Fixed process, also available for H 2 Driven wastewater microbial nitrogen removal process. Compared with the traditional microbial electrosynthesis system based on the biofilm on the electrode surface, the present invention has the advantages of high electrode current density, high coulombic efficiency, fast reactor start-up time, high production intensity, high system stability and the like. Compared with the traditional gas fermentation reactor based on exogenous hydrogen, the present invention realizes the in-situ supply of micro-nano hydrogen bubbles, and avoids the storage and transportation of hydrogen and the energy consumption of generating micro-nano hydrogen bubbles.

The invention relates to a direct forming production method for a lithium ion battery cathode. The method comprises the following steps of: 1) mixing 30 to 70 percent of lithium ion battery cathode active substance, 10 to 50 percent of conductive fiber and 1 to 20 percent of adhesive in percentage by mass in a reaction kettle respectively, wherein the temperature is controlled between 20 and 50 DEG C, the stirring speed is 60 to 300 revolutions per minute and the mixing is performed for 1 to 10 hours; and 2) pressing the mixture in a piece press to obtain an integrally formed lithium ion battery cathode pole piece, wherein the temperature is controlled between 70 and 120 DEG C and the pressure is 50 to 200MPa. The method has simple process; compared with the pole piece produced by a traditional method, the pole piece has the advantages of good forming property, low density and small volume; and the method can greatly reduce the weight and the volume of the pole piece. The method for producing the electrode pole piece can effectively reduce the thickness of the pole piece so as to improve the diffusion coefficient of lithium ions in the cathode and improve the electric capacity of a battery; and the active substance is uniformly contacted with the adhesive and organic electrolyte to prepare a high-density electrode so as to reduce the electrode area of side reaction in the charging / discharging process, prolong the service life of the battery and improve the stability of the battery.

The invention relates to a micro-microbial fuel cell and a preparation method thereof, belonging to the technical field of microbial fuel cells. The battery uses cotton thread I soaked in an oxidant solution as a cathode cell, and cotton thread II soaked in a bacterial solution as an anode cell. The cotton thread One end of I is wrapped by carbon cloth I and drawn out by wire I to form a cathode, the other end of cotton thread I is intertwined with one end of cotton thread II to form an ion exchange area, and the ion exchange area is wrapped by carbon cloth II and drawn out by wire II The anode is formed, and the ion exchange area wrapped by carbon cloth II is located in the closed space formed by insulating plate I and insulating plate II. The battery does not need an external pump, has the advantages of high current density, small internal resistance, simple preparation process, easy-to-obtain raw materials, and low price, and is suitable for industrial production.

The invention discloses a manufacturing method of a thin film transistor and a transistor manufactured by the method, wherein the method is characterized by comprising the following steps: sequentially forming a surface covering layer, a polycrystalline silicon island active layer, a grid insulating layer, a grid electrode conducting layer and an auxiliary layer on a baseplate, photoetching the auxiliary layer to form an LDD forming layer, and forming a lightly doped drain electrode region, a heavily doped source electrode, a heavily doped drain electrode and a channel on the polycrystalline silicon island active layer by utilizing the action of the LDD forming layer and through only once doped ion implantation. The method of the invention only needs once ion implantation, simplifies the manufacturing working procedures and lowers the manufacturing cost; the thin film transistor which is manufactured by adopting the method and provided with a lightly doped drain electrode has the advantages of small electrode area and large numerical aperture.

The invention discloses a preparation method of an array substrate, an array substrate and an organic light-emitting display device. The preparation method includes: 1) sequentially forming a first metal layer, a first insulating material layer, and a second metal layer covering the thin film transistor region and the capacitor region on a substrate; The tone mask etches the second metal layer, the first insulating material layer and the first metal layer to form separated source and drain electrodes, a gate insulating layer and a bottom gate in the thin-film transistor region, and to form a separated gate in the capacitor region. The second electrode, the first dielectric layer and the first electrode. According to this, the source and drain of the thin film transistor, the gate insulating layer and the bottom gate can be etched and formed only through a half-tone mask, and the second electrode, the first dielectric layer and the first electrode of the capacitor are formed at the same time, The process is simplified. The array substrate of the present invention has a double-gate thin film transistor and a capacitor with two capacitors connected in parallel, which improves the capacitance on the basis of increasing the driving force.

The invention provides a method for preparing a phospholipid nano / micron tube by using a finger-shaped micro-electrode and relates to a preparation method of a phospholipid tube. A plane finger-shaped micro-electrode is utilized and an electric forming method is used for realizing the preparation of the phospholipid tube in a certain solution height range, a certain alternating-current voltage range, a certain frequency range and a certain reaction time range; the shape of the phospholipid tube is good and the yield is higher; and the method can be widely applied to relative biological membrane properties of the fields including cell biology, membrane biophysics, biochemistry, bionics and the like, and can be applied to researches and application of cell simulation, medical carriers, target feeding and the like. The method disclosed by the invention fills in the blank of the preparation method of the phospholipid tube, enlarges the preparation range in a breakthrough manner, and has the advantages of small electrode area, low energy consumption, fast growing speed, short preparation period, simplicity in operation, moderate reaction conditions, small pollution to the environment, good controllability of the length and the diameter of the phospholipid tube and the like.