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  • 锂电池无尘车间装修装修要注意什么?
    来源:http://www.jnyhrs.com 浏览: 发布日期:2021-11-30
    锂电池生产中对锂电池材料影响的,是空气中的水分、浮尘颗粒,其中影响和危害的是水分。在锂电池的制造过程中,原材料一旦被空气中的水分进入,就会影响锂电池的安全,严重的一般会引起锂电池鼓包甚至爆炸;而大气环境中的浮土、尘埃则会引起锂电池的短路。所以锂电池生产都会在无尘车间内进行。
    Moisture and floating dust particles in the air have the greatest impact on lithium battery materials in lithium battery production, among which moisture has the greatest impact and harm. In the manufacturing process of lithium battery, once the raw materials are entered by moisture in the air, it will affect the safety of lithium battery, and generally cause bulging and even explosion of lithium battery; The floating soil and dust in the atmospheric environment will cause the short circuit of lithium battery. Therefore, the production of lithium batteries will be carried out in the dust-free workshop.
    锂电池无尘车间从技术工艺层面来说,重要的是环境控制,这其中更重要的则是“相对湿度”和“洁净度控制”。
    From the technical process level, the most important thing of lithium battery dust-free workshop is environmental control, among which the most important are "relative humidity" and "cleanliness control".
    锂电池无尘车间一般为丙类厂房。千级、万级、十万级区间如何排布来满足功能需求且节约能源,都是一门深刻的学问,在这里CEIDI西递有个小要点可以透露:两个相连车间的洁净度等级不要超过两个数量级哦。
    Lithium battery dust-free workshop is generally class C workshop. How to arrange the 1000, 10000 and 100000 level sections to meet the functional requirements and save energy is a profound knowledge. Here, ceidi Xidi has a small point to reveal: the cleanliness level of two connected workshops should not exceed two orders of magnitude.
    同样是无尘车间,锂电池无尘车间的洁净室与其他行业的洁净室的不同点就是对生产环境中湿度控制要求较高(温度要求低露点),因此CEIDI西递空调选型配置时,不仅考虑送、回风系统配置初、中、过滤器,使室内环境空气不断循环过滤,来保证空气悬浮粒子受控到一定浓度以外,空调机组还要带有除湿段,除湿空调机组是降低环境露点的关键设备。目前在锂电池的生产制造过程中,锂电池生产厂间的洁净室内部空气所要求-35℃至-40℃范围内的露点温度是较难控制稳定住的。
    It is also a dust-free workshop. The biggest difference between the clean room of the lithium battery dust-free workshop and that of other industries is that it has high requirements for humidity control in the production environment (the temperature requires low dew point). Therefore, when selecting and configuring ceidi Xidi air conditioner, it not only considers that the supply and return air systems are equipped with primary, medium and high-efficiency filters to continuously circulate and filter the indoor ambient air, To ensure that the air suspended particles are controlled to a certain concentration, the air conditioning unit also has a dehumidification section. The dehumidification air conditioning unit is the key equipment to reduce the environmental dew point. At present, in the production and manufacturing process of lithium batteries, it is difficult to control and stabilize the dew point temperature within the range of - 35 ℃ to - 40 ℃ required by the clean room air between lithium battery production plants.
    况且要生产就肯定会有生产人员,而且电池行业产线又较长会导致大量的工作人员一直在电池生产线上体力操作,这时候生产人员也肯定散发出比平时更多湿气,该部分湿气多多少少肯定会从洁净服中漏出,因此该部分湿气则必须要及时吹扫干净,所以就会对除湿机组性能要求更高:一般电池行业肯定都选择稳定性好(能够连续运转)和除湿量大的机组,更好能产生在-50℃~-60℃露点(精确控制)范围的气体对洁净室内进行连续吹扫让湿度、温度和洁净度都能符合生产要求。
    实验室装修
    Moreover, there must be production personnel for production, and the long production line of the battery industry will lead to a large number of staff working on the battery production line. At this time, the production personnel must emit more moisture than usual. This part of moisture will leak out from the clean clothes. Therefore, this part of moisture must be purged in time, Therefore, the performance requirements of dehumidification units will be higher: generally, the battery industry must choose units with good stability (continuous operation) and large dehumidification capacity. It is best to produce gas in the dew point range of - 50 ℃ ~ - 60 ℃ (accurately controlled) to continuously purge the clean room, so that the humidity, temperature and cleanliness can meet the production requirements.
    按原材料和生产的安全性、经济性等考虑:锂电池生产车间的湿度控制梯段CEIDI一般建议为:相对湿度≦30%车间(如搅拌、涂布机头、机尾等);相对湿度≦20%车间(如辊压、制片、烘烤等);相对湿度≦10%车间(如叠片、卷绕、装配等),露点温度≦-45℃车间(如电芯烘烤、注液、封口等)。具体湿度控制会有少许差异,应根据各电池企业实际情况来进行操作,同时除湿循环运作也需要控制工序的停留时间。要维持锂电池无尘车间的标准生产环境,还有其他内部技术系统需要酌情落实。
    Considering the safety and economy of raw materials and production, ceidi generally recommends that the humidity control ladder of lithium battery production workshop is: workshop with relative humidity ≤ 30% (such as mixing, coating head, tail, etc.); Workshop with relative humidity ≤ 20% (such as rolling, film making, baking, etc.); Workshops with relative humidity ≤ 10% (such as lamination, winding, assembly, etc.) and dew point temperature ≤ 45 ℃ (such as cell baking, liquid injection, sealing, etc.). There will be some differences in specific humidity control, which should be operated according to the actual situation of each battery enterprise. At the same time, the dehumidification cycle operation also needs to control the residence time of the process. To maintain the standard production environment of lithium battery dust-free workshop, other internal technical systems need to be implemented as appropriate.
    装饰装修系统
    Decoration system
    地面:洁净区和非洁净区3mm环氧树脂自流平地面、正负极搅拌车间、正负极承重房可采用3mm不锈钢地面。墙面采用手工岩棉彩钢板(A级防火材料、彩钢板厚度0.476mm*50mm),吊顶彩钢板采用手工玻镁中空彩钢板(A级防火材料、彩钢板厚度0.476mm*50mm,承重100Kg/平方),门体采用成型钢制净化门,玻璃窗采用钢化玻璃。
    Floor: 3mm epoxy resin self leveling floor in clean area and non clean area, positive and negative electrode mixing workshop and positive and negative electrode bearing room can adopt 3mm stainless steel floor. The wall adopts manual rock wool color steel plate (class a fireproof material, color steel plate thickness 0.476mm * 50mm), the ceiling color steel plate adopts manual glass magnesium hollow color steel plate (class a fireproof material, color steel plate thickness 0.476mm * 50mm, bearing 100kg / m2), the door body adopts formed steel purification door, and the glass window adopts tempered glass.
    电气照明系统
    Electrical lighting system
    净化车间照明采用LED灯,照度要求250-300Lx,配置相关停电应急照明灯盘。电线及线管均采用防火阻燃材料。
    LED lamps are used for lighting in the purification workshop, with illuminance requirements of 250-300lx, and relevant power failure emergency lighting panels are configured. Wires and conduits are made of fireproof and flame retardant materials.
    工艺管道系统
    Process piping system
    真空管道及纯水管道可采用U-PVC管道,氮气管道采用铝合金管道,空压管道采用镀锌钢管及不锈钢管。
    U-PVC pipes can be used for vacuum pipes and pure water pipes, aluminum alloy pipes can be used for nitrogen pipes, and galvanized steel pipes and stainless steel pipes can be used for air compression pipes.
    空调通风系统
    Air conditioning and ventilation system
    制冷主机、除湿机组可以由甲方提供,通用空调末端设备采用空调箱及风机盘管。风管可采用角铁法兰,保温采用B1级防火阻燃保温棉。
    The refrigeration host and dehumidification unit can be provided by Party A, and the general air conditioning terminal equipment adopts air conditioning box and fan coil. Angle iron flange can be used for air duct, and B1 grade fireproof and flame retardant insulation cotton shall be used for insulation.
    压力差控制
    Pressure difference control
    为防止外部污染源进入锂电池车间?必须把车间内的空气压力控制在合理范围才行。CEIDI西递一般将相连车间的压差控制在0.03-0.05为宜。
    To prevent external pollution sources from entering the lithium battery workshop? The air pressure in the workshop must be controlled within a reasonable range. Ceidi Xidi should generally control the pressure difference between the connected workshops at 0.03-0.05.
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