Vacuumize soft package for pot - roast egg products 抽空软包装卤蛋制品
2.
Between bravery layer vacuumize , lens face processing prevents infra - red radiate , the stopper is hot undesirable conductor . outfit water does not want too full 胆层之间抽真空，镜面处理防红外辐射，木塞是热的不良导体。装水不要太满。
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Quick diathermancy avoid damage to cmos chip and solder . precise design and good technics avoid damage due to attrition . vacuumize avoid alterative because of oxygenation during transportation . antistatic plastic core 传热吸收快,尽可能的避免对芯片和焊盘的损坏;精确的设计和制造工艺避免磨擦对焊盘可能造成的损坏;真空包装避免?品在运输途中氧化变质;防静电塑料芯;符合美国军队及国家宇航局各种标准
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A lot of experiments have been done in the process of exploiture soft packaging li - ion battery about how to choice the rational arts and crafts . the content include : how to deal with the collector , add how much pvdf in the material , how long the material need to stirring and the right viscidity , how much condubtivity agent the electrode need , what theckness is best , choice different collectors , the degree of dryness of the electrode , theckness of pressed model , how much electrolyte will be added , placement how long after added the electrolyte , system of formation how to influnce the battery , in formation the battery need or not need preesure from outside , how to vacuumize and the optimize matching positive pole and negative pole . with these practice make sure the parameter of the positive pole should less than 90 m ; according to different vacuumize order the conduc - tivity agent in anode will be 5mass % and 9mass % , respectively , and in cathode the data is 2mass % ; every 100mah added to 0 . 4 ml electrolyte ; before formation the battery should be placement 8 hours and the system of formation must be less than 0 . 01c before the voltage reach to 3 . 0v ; should press in outside when battery in formation ; to these batteries which capacity more than 350mah the vacuum time not excess 15s ; the optimize matching positive pole and negative pole between 2 . 10 : 1 and 2 . 15 : 1 . finally make out the battery which cycling performance and security are all very well 液态软包装锂离子电池的研究主要是对关键工艺进行了优化设计,具体包括:集流体的处理、 pvdf的加入量、浆料搅拌时间和粘度、导电剂的加入量、电极膜的厚度、不同集流体的选择、电极膜的干燥程度、压型的厚度、电解液的加入量、注入电解液后静置时间的长短、化成制度的影响、化成时电池所具有的压力影响、抽真空的处理、正负极活性物质的匹配。最后确定出液态软包装锂离子电池最佳工艺参数:正极膜的厚度小于90 m ;根据化成时不同抽真空顺序,确定正极膜中的导电剂的加入量分别为5mass %和9mass % ;负极膜中导电剂的加入量为2mass % ;电解液的加入量为每100mah添加0 . 4ml ;化成前电池的静置时间应当大于8h ;电池在3 . 0v之前采用小于0 . 01c的化成制度;在化成过程中应当施加一定的外部压力;对于350mah的电池抽真空的延时不应大于15s ;而正负极活性物质的质量比应当在2 . 1 : 1 2 . 15 : 1之间。
