摘要：【中文】本发明创造涉及一种导电复合材料、制备方法及其应用，该导电复合材料为至少由氧化石墨烯、Co(NO₃)₂·6H₂O、Ni(NO₃)₂·6H₂O与六次亚甲基四胺制备所得的NiCoO₂/石墨烯/NiCoO₂三明治结构的复合材料，该层级超薄介孔NiCoO₂/石墨烯/NiCoO₂三明治结构复合材料在1A/g循环350圈后仍然有595mAh/g的比容量，是碳材料理论比容量的1.6倍；因而以本发明的复合负极材料制备的电池不仅具有比目前商业用碳负极材料制备的电池具有更高比容量，体积比容量和体积能量密度也远高于碳负极材料。 【EN】The invention relates to a conductive composite material, a preparation method and application thereof, wherein the conductive composite material is prepared from at least graphene oxide and Co (NO)₃)₂·6H₂O、Ni(NO₃)₂·6H₂NiCoO prepared from O and hexamethylenetetramine₂graphene/NiCoO₂The composite material with a sandwich structure is the ultrathin mesoporous NiCoO of the layer₂graphene/NiCoO₂The specific capacity of the composite material with the sandwich structure still has 595mAh/g after 1A/g circulation for 350 circles, which is 1.6 times of the theoretical specific capacity of the carbon material; therefore, the battery prepared by the composite negative electrode material has higher specific capacity than the battery prepared by the current commercial carbon negative electrode material, and the specific capacity and the volumetric energy density are far higher than those of the carbon negative electrode material.

摘要：【中文】本发明提供了检测锂离子软包电池电解液动态浸润变化的装置及方法，所述装置包括超声波检测模块、传动模块、擀压模块、充放电模块、信号处理模块。本发明通过于不同时刻、电池中不同位置，超声波反复穿透和反射的强度差异来判断该处极片层间是否有气泡，及该处极片层间是否完成了电解液的浸润，避免了电池拆解带来的成本增加、安全隐患以及环境污染等不良影响，且能通过动态图像来直观观察锂离子软包电池内部不同位置浸润速率的差异，以及充放电过程中不同位置产气量影响浸润面积的变化，为后续原材料设计、电池设计以及电池制造工艺提供依据。 【EN】The invention provides a device and a method for detecting dynamic infiltration change of electrolyte of a lithium ion soft package battery. According to the invention, whether bubbles exist between the pole piece layers at different moments and at different positions in the battery or not and whether the impregnation of the electrolyte is completed between the pole piece layers at the positions is judged by the strength difference of the repeated penetration and reflection of the ultrasonic waves at different positions, so that adverse effects of cost increase, potential safety hazards, environmental pollution and the like caused by the disassembly of the battery are avoided, the difference of the impregnation rates of different positions in the lithium ion soft package battery can be visually observed through dynamic images, and the change of the impregnation area caused by the gas production at different positions in the charging and discharging process is provided for the subsequent raw material design, battery design and battery manufacturing process.