Abstract: A positive electrode sheet in the secondary battery includes a positive electrode current collector, a positive electrode active material layer, and a positive electrode tab, where the positive electrode active material layer is disposed on at least one surface of the positive electrode current collector. The positive electrode active material layer is provided with a first groove exposing the positive electrode current collector. The positive electrode tab is disposed in the first groove and connected to the positive electrode current collector. An insulating tape is provided on each of a surface of the positive electrode tab and a region, corresponding to the first groove, of a surface of the positive electrode sheet away from the positive electrode tab. A melting point of the insulating tape is 250° C. to 450° C. An electrolyte includes carbonate and carboxylate.

Abstract: An electrode assembly includes a first electrode plate with a first current collector, a first conductive material layer provided with a first opening, and a second conductive material layer provided with a second opening. The first current collector includes a first surface and a second surface. The first surface includes a first region. The second surface includes a second region. When viewed from the first direction, the first region overlaps with the second region, and the first conductive plate is connected to the first region or the second region. The first opening includes first to third opening edges. The second opening includes fourth to sixth opening edges. The first, second, and third distances are the distances between the first-fourth, second-fifth, and third-sixth opening edges, respectively, the electrochemical device satisfies at least one of the following conditions: 0.2 mm?first distance; 0.2 mm?second distance; or 0.2 mm?third distance.

Abstract: A secondary battery includes a housing, a first tab, and an electrode assembly. The electrode assembly includes a first electrode plate. The first electrode plate includes a first current collector, a first active material layer disposed on a first surface of the first current collector and a second active material layer disposed on a second surface of the first current collector. The first active material layer is provided with a first groove exposing a first region of the current collector. A second region of the first current collector is covered with a second active material layer. The first region is opposite to the second region in a second direction. The first tab includes a first connecting portion, a first bent portion, and a second connecting portion that are connected in sequence.

Abstract: A cell includes a flat electrode assembly formed by superposing and winding respective first ends of a first electrode sheet, a first separator, a second electrode sheet, and a second separator. A first electrode tab is connected to the first electrode sheet, and a second electrode tab is connected to the second electrode sheet. The second electrode sheet includes a second current collector, a second outer membrane arranged on a surface facing away from a center of the cell, and a second inner membrane arranged on a surface facing the center of the cell. Respective starting ends of the second outer membrane and the second inner membrane are located on the second current collector between the first end of the second electrode sheet and a second bend. The second inner membrane is provided with an inner uncoated region at least at the second bend.

Abstract: Disclosed are a pulverized coal preprocessing method and a pulverized coal gasifying method. The pulverized coal preprocessing method comprises the following steps: (1) performing pore broadening on pulverized coal to obtain preprocessed pulverized coal; (2) loading alkali metal ions into the preprocessed pulverized coal under an ion exchange condition to obtain alkali metal loaded pulverized coal. The method further comprises loading a chrome complex into the alkali metal loaded pulverized coal obtained in described step (2). In gasification, the pulverized coal loaded with alkali metal potassium and chrome catalysts obtained by the method has the advantages of high sulphur removal rate, high carbon conversion rate, short gasifying reaction time and high methane production.

Abstract: Disclosed are a pulverized coal preprocessing method and a pulverized coal gasifying method. The pulverized coal preprocessing method comprises the following steps: (1) performing pore broadening on pulverized coal to obtain preprocessed pulverized coal; (2) loading alkali metal ions into the preprocessed pulverized coal under an ion exchange condition to obtain alkali metal loaded pulverized coal. The method further comprises loading a chrome complex into the alkali metal loaded pulverized coal obtained in described step (2). In gasification, the pulverized coal loaded with alkali metal potassium and chrome catalysts obtained by the method has the advantages of high sulphur removal rate, high carbon conversion rate, short gasifying reaction time and high methane production.

Abstract: A cell includes a flat electrode assembly formed by superposing and winding respective first ends of a first electrode sheet, a first separator, a second electrode sheet, and a second separator. A first electrode tab is connected to the first electrode sheet, and a second electrode tab is connected to the second electrode sheet. The second electrode sheet includes a second current collector, a second outer membrane arranged on a surface facing away from a center of the cell, and a second inner membrane arranged on a surface facing the center of the cell. Respective starting ends of the second outer membrane and the second inner membrane are located on the second current collector between the first end of the second electrode sheet and a second bend. The second inner membrane is provided with an inner uncoated region at least at the second bend.

Abstract: The present invention provides methods for the inhibition of reperfusion injury by treatment with Grammastola spatulata mechanotoxin4 (GsMTx4). The GsMTx4 may be delivered to the ischemic tissue in an individual by any means prior to, during or after ischemia reperfusion injury.