摘要：【中文】本发明提供一种制备4‑(芳基二氮烯基)‑2，3‑二氢吡咯衍生物的方法，用氮丙环、芳基末端炔与芳基四氟硼酸重氮盐做反应原料，经过三组分串联反应，高效合成4‑(芳基二氮烯基)‑2，3‑二氢吡咯衍生物。该方法不使用金属，反应条件温和，简便易行，收率高，原料稳定且易于制得。本发明的合成方法在医药、农药、化工和纺织等领域有重要意义。 【EN】The invention provides a method for preparing 4- (aryl diazenyl) -2, 3-dihydropyrrole derivatives, which uses aziridine, aryl terminal alkyne and aryl tetrafluoroborate diazonium salt as reaction raw materials to efficiently synthesize the 4- (aryl diazenyl) -2, 3-dihydropyrrole derivatives through three-component series reaction. The method does not use metal, has mild reaction conditions, is simple and easy to implement, has high yield, and is stable in raw materials and easy to prepare. The synthetic method has important significance in the fields of medicine, pesticide, chemical industry, textile and the like.

摘要：【中文】本发明涉及锂离子电池领域，公开了一种电解液，包括高温型有机溶剂、正负极保护添加剂及电解质锂盐；其中，高温型有机溶剂包括以下重量份数的各组分：碳酸乙烯酯5～30份、碳酸丙烯酯5～30份、碳酸二乙酯5～30份、丙酸丙酯5～50份及氟苯1～10份；正负极保护添加剂包括以下重量份数的各组分：硫酸乙烯酯0.2～5份、氟代碳酸乙烯酯0.2～5份、二氟碳酸乙烯酯0.2～5份、二腈类有机物0.2～5份、二氟磷酸锂0.2～3份、双乙二醇双丙腈醚0.2～5份、氟磺酰亚胺锂0.2～3份、1‑丙基磷酸酐0.1～2份、1,1,2,2‑四氟乙基‑2,2,3,3‑四氟丙基醚0.5～20份、二氟草酸硼酸锂0.1～2份及甲烷二磺酸亚甲酯0.1～1份。本电解液耐高温性能优异，能够使具有高能量密度的锂离子电池在70℃以上温度下也能正常工作，且能够保持较佳的续航能力。 【EN】The invention relates to the field of lithium ion batteries, and discloses an electrolyte, which comprises a high-temperature organic solvent, an anode and cathode protection additive and electrolyte lithium salt; the high-temperature organic solvent comprises the following components in parts by weight: 5-30 parts of ethylene carbonate, 5-30 parts of propylene carbonate, 5-30 parts of diethyl carbonate, 5-50 parts of propyl propionate and 1-10 parts of fluorobenzene; the anode and cathode protection additive comprises the following components in parts by weight: 0.2-5 parts of vinyl sulfate, 0.2-5 parts of fluoroethylene carbonate, 0.2-5 parts of difluoroethylene carbonate, 0.2-5 parts of dinitrile organic matter, 0.2-3 parts of lithium difluorophosphate, 0.2-5 parts of diethylene glycol dipropionitrile ether, 0.2-3 parts of lithium fluorosulfonylimide, 0.1-2 parts of 1-propylphosphoric anhydride, 0.5-20 parts of 1,1,2, 2-tetrafluoroethyl-2, 2,3, 3-tetrafluoropropyl ether, 0.1-2 parts of lithium difluorooxalato borate and 0.1-1 part of methylene methanedisulfonate. The electrolyte has excellent high-temperature resistance, can ensure that the lithium ion battery with high energy density can normally work at the temperature of more than 70 ℃, and can keep better cruising ability.

摘要：【中文】本发明涉及电池材料制备方法领域，公开了一种碳包覆氮镁掺杂多孔硅基复合材料的制备方法及锂离子电池，该方法包括以下步骤：将碳源溶液滴加到纳米二氧化硅粉中，再在氮气气氛下进行高温碳化操作，得到碳包覆氮掺杂二氧化硅材料；将碳包覆氮掺杂二氧化硅材料在还原气氛下进行高温还原操作，得到碳包覆氮掺杂硅基复合材料；对碳包覆氮掺杂硅基复合材料进行刻蚀操作，得到碳包覆氮掺杂多孔硅基复合材料；对碳包覆氮掺杂多孔硅基复合材料进行超声分散操作，得到分散混合浊液；往镁源混合溶液中加入分散混合浊液，再进行分离、洗涤及干燥操作，得到碳包覆氮镁掺杂多孔硅基复合材料。本方法能够有效抑制硅的体积膨胀，有效提高硅碳材料的导电性和首效。 【EN】The invention relates to the field of battery material preparation methods, and discloses a preparation method of a carbon-coated nitrogen-magnesium doped porous silicon-based composite material and a lithium ion battery, wherein the method comprises the following steps: dropwise adding a carbon source solution into the nano silicon dioxide powder, and then carrying out high-temperature carbonization operation in a nitrogen atmosphere to obtain a carbon-coated nitrogen-doped silicon dioxide material; carrying out high-temperature reduction operation on the carbon-coated nitrogen-doped silicon dioxide material in a reducing atmosphere to obtain a carbon-coated nitrogen-doped silicon-based composite material; etching the carbon-coated nitrogen-doped silicon-based composite material to obtain a carbon-coated nitrogen-doped porous silicon-based composite material; carrying out ultrasonic dispersion operation on the carbon-coated nitrogen-doped porous silicon-based composite material to obtain a dispersed mixed turbid solution; and adding the dispersed mixed turbid solution into the magnesium source mixed solution, and then performing separation, washing and drying operations to obtain the carbon-coated nitrogen-magnesium doped porous silicon-based composite material. The method can effectively inhibit the volume expansion of silicon and effectively improve the conductivity and the first effect of the silicon-carbon material.

摘要：【中文】一种锂离子电池制备方法及其锂电池，锂离子电池制备方法包括以下步骤：将正极活性物质混合物涂布在铝箔的A面，并且将绝缘层涂覆在铝箔的B面；将金属锂电镀在铜箔的A面，并且将绝缘层涂覆在铜箔的B面；将隔膜设置在正极片与负极片之间，并且将正极片的A面与负极片B面相对设置或者将负极片A面与正极片的B面相对设置；对电芯组进行卷绕操作或者将多个电芯组层叠设置。本发明的锂离子电池制备方法通过设置一种单面活性材料的正极片及采用锂金属作为负极的负极片，从而能够使得电池的能量密度得到提高，同时，在正极片与负极片上设置绝缘层，从而能够对产生的锂枝晶进行阻隔，由此防止锂枝晶与正极片接触造成短路。 【EN】A preparation method of a lithium ion battery and the lithium battery thereof are provided, wherein the preparation method of the lithium ion battery comprises the following steps: coating the positive active material mixture on the surface A of the aluminum foil, and coating the insulating layer on the surface B of the aluminum foil; plating metal lithium on the surface A of the copper foil in an electric plating mode, and coating the insulating layer on the surface B of the copper foil; arranging a diaphragm between the positive plate and the negative plate, and arranging the surface A of the positive plate opposite to the surface B of the negative plate or arranging the surface A of the negative plate opposite to the surface B of the positive plate; the winding operation is performed on the electric core assembly or a plurality of electric core assemblies are stacked. According to the preparation method of the lithium ion battery, the positive plate made of the single-sided active material and the negative plate made of the lithium metal are arranged, so that the energy density of the battery can be improved, and meanwhile, the insulating layers are arranged on the positive plate and the negative plate, so that generated lithium dendrites can be blocked, and short circuit caused by contact of the lithium dendrites and the positive plate is prevented.