摘要:
An electrochemical element comprises a container and a sealing plate for sealing an opening of the container. The container is sealed with the sealing plate by welding a portion of the brazing material on the sealing plate and a portion of the metal film of the container which make contact with each other together in a state where a first electrode active material, a separator, a second electrode active material and an electrolyte are contained in the container. An electricity collector sheet is electrically connected to the first electrode active material or the second electrode active material, whichever is closer to the opening of the container. At least a portion of the electricity collector sheet extends to the end portion of the container so that the container and the sealing plate are welded together with the extending portion of the electricity collector sheet in between. Thus, the manufacturing process may be simplified so that the welding of the container and the sealing plate can be easily carried out even when the container and the sealing plate are reduced in size.
摘要:
An electrochemical element comprises a container and a sealing plate for sealing an opening of the container. The container is sealed with the sealing plate by welding a portion of the brazing material on the sealing plate and a portion of the metal film of the container which make contact with each other together in a state where a first electrode active material, a separator, a second electrode active material and an electrolyte are contained in the container. An electricity collector sheet is electrically connected to the first electrode active material or the second electrode active material, whichever is closer to the opening of the container. At least a portion of the electricity collector sheet extends to the end portion of the container so that the container and the sealing plate are welded together with the extending portion of the electricity collector sheet in between. Thus, the manufacturing process may be simplified so that the welding of the container and the sealing plate can be easily carried out even when the container and the sealing plate are reduced in size.
摘要:
A non-aqueous electrolyte secondary battery capable of withstanding a reflow temperature has a positive electrode having a conductive material, a binder, and an electrode active material selected from the group consisting of LiCoO2, LiNiO2 and LiMn2O4. A negative electrode has a conductive material, a binder and an electrode active material selected from the group consisting of a titanium oxide having an anatase structure, lithium titanate having a spinel structure and a molybdenum oxide. An electrolyte has a supporting salt and a non-aqueous solvent having a boiling point greater than 200° C. A gasket is comprised of a material having a heat deformation temperature greater than 230° C. A separator is disposed between the positive electrode and the negative electrode and is comprised of a material having a heat deformation temperature greater than 230° C. At least one of the positive electrode and the negative electrode comprises an electrode heat-treated to a temperature of 250° C. to 450° C. for deactivating a thermally active portion of each of the conductive material, the binder and the electrode active material thereof.
摘要翻译:能够承受回流温度的非水电解质二次电池具有选自LiCoO 2,LiNiO 2和LiMn 2 O 4的导电材料,粘合剂和电极活性物质的正极。 负极具有导电材料,粘合剂和选自具有锐钛矿结构的氧化钛,具有尖晶石结构的钛酸锂和氧化钼的电极活性材料。 电解质具有支撑盐和沸点大于200℃的非水溶剂。垫片由热变形温度大于230℃的材料构成。隔板设置在正极和 负极,并且由热变形温度大于230℃的材料构成。正极和负极中的至少一个包括热处理至250℃至450℃的电极,用于 使导电材料,粘合剂及其电极活性物质的热活性部分失活。
摘要:
An electrical double layer capacitor has an electrolyte comprised of a non-aqueous solvent and a supporting salt dissolved in the non-aqueous solvent. A pair of polarizing electrodes are disposed in confronting relation with one another. A separator is disposed between the polarizing electrodes. The supporting salt contained in the electrolyte exists only in regions proximate a surface of the polarizing electrodes when the electrical double layer capacitor is fully charged. The non-aqueous solvent contains a preselected amount of dissolved supporting salt calculated from a surface area of the polarizing electrodes and a size of a molecule of the supporting salt in an ionized state.