锂电池英文生产流程

Mixing(配料) Mix solvent and bound separately with positive and negative active materials. Make into positive and negative pasty materials after stirring at high speed till uniformity. Coating(涂布) Now, we are in coating line. We use back reverse coating. This is the slurry-mixing tank. The anode(Cathode)slurry is introduced to the coating header by pneumaticity from the mixing tank. The slurry is coated uniformly on the copper foil, then the solvent is evaporated in this oven. (下面的依据情况而定)There are four temperature zones, they are independently controlled. Zone one sets at 55 degree C, zone two sets at 65 degree C, zone three sets at 80 degree C, zone four sets at 60 degree C. The speed of coating is 4 meters per minute. You see the slurry is dried. The electrode is wound to be a big roll and put into the oven. The time is more than 2 hours and temperature is set at 60 degree C. Throughout the coating, we use micrometer to measure the electrode thickness per about 15 minutes. We do this in order to keep the best consistency of the electrode. Vocabulary: coating line 涂布车间back reverse coating 辊涂coating header 涂布机头 Al/copper foil 铝/铜箔degree C 摄氏度temperature zones 温区 wind to be a(big)roll 收卷evenly/uniformly 均匀oven 烘箱 evaporate 蒸发electrode 极片 Cutting Cut a roll of positive and negative sheet into smaller sheets according to battery specification and punching request. Pressing Press the above positive and negative sheets till they become flat. Punching Punching sheets into electrodes according to battery specification, Electrode After coating we compress the electrode with this cylindering machine at about 7meters per minute. Before compress we clean the electrode with vacuum and brush to eliminate any particles. Then the compressed electrode is wound to a big roll. We use micrometer to measure the compressed electrode thickness every 10 minutes. After compressing we cut the web into large pieces. We tape the cathode edge to prevent any possible internal short. The large electrode with edge taped is slit into smaller pieces. This is ultrasonic process that aluminum tabs are welded onto cathodes using ultrasonic weld machine. We tape the weld section to prevent any possible internal short. And finally, we clean the finished electrodes with vacuum and brush. Vocabulary: cylindering 柱形辊压vacuum 真空particle 颗粒 wound 旋紧卷绕micrometer 千分尺internal short 内部短路 slit 分切ultrasonic 超声波weld 焊接 Anode making In anode making process, we cut the material into certain length strips. At the mean time, we put a small piece of insulation tape to the tab in order to prevent any possible internal short. Then the prepared nickel tab is riveted on anode and pat plain. We also tape the rivet section to prevent any possible internal short. And finally, we clean the finished electrodes with vacuum and brush. Jelly roll This is Jelly roll, a manual winding process. In the course of Jelly roll, firstly, we place the separator in between central pins, press the foot switch to turn central pins about 120 degrees. Secondly, place the anode to the edge of central pins, and turn central pins about 180 degrees. Lastly, place the cathode to the edge of central pins. During the winding process, we apply tension by pressing the electrodes and the separator. We put the termination tape at the end. After Jelly roll, we check the short circuit, then form the Jelly roll by pressing, so that it is easier to insert the Jelly roll into the can. Control points: 1. When winding to the end of the anode, covering the anode completely by the separator. 2. In the whole process, it is the most important points to ensure the best alignment among the cathode, the anode and the separator for the Jelly roll. The separator has to cover the anode and the cathode, and the anode has to cover the cathode completely. These points are mainly checked before short checking. Vocabulary: Jelly roll 卷绕Manual 手工的Separator 隔膜纸 central pin 卷针foot switch 脚踏开关anode 负极片 cathode 正极片termination tape 尾端胶纸short circuit 短路 alignment 整齐 Taping & inserting Put the tape on the two side of J/R, To prevent J/R being hurt in the insertion process. Put a piece of tape between cathode tab and J/R .Because anode electrode is wider than cathode electrode. Put the bottom tape. Insert the finished J/R into the can manually and then short circuit check by multi-meter. Spot welding Ni tab to cap. Ultrasonic welding the Al tab to cap using ultrasonic weld. We have the second spot welding to ensure the best contact between the tab and cap. Apply top insulator, to prevent Ni tab contacting with can. Final J/R insertion by the centrifuge. Cap positioning by hand. Then check the cap in the suitable position, or the defects is put into red bin ,Finally , short circuit check again to ensure that there be no internal short J/R flowing to next line. Vocabulary: J/R 极芯tape 胶纸electrode 极片multi-meter 万用表Spot welding 点焊Ni tab 极耳Ultrasonic weld 超焊Insulator 隔圈centrifuge machine 甩壳机 defect 次品red bin 红盒 Laser welding This is the Laser welding room! The first process is welding for the aluminum cap, specially connect the rivet with the weld plate to prevent the cell impedance excursion. The second process is the Laser seam welding. In the process, it must ensure the intensity and airproof characters of the weld. After the cell is welded, we would perform the leak checking, the short circuit checking and the weighing checking. Vocabulary: Laser welding room 激光焊接车间Cap 盖板Rivet 铆钉Plate 镍片 impedance excursion 内阻漂移intensity 强度leak checking 检漏 short circuit checking 测短路weighing checking 称重 Oven drying electrolyte filling and storing This is the process of cells oven drying at 80℃ for more than 12 hours under vacuum. After oven drying, the cells are transferred to the process of electrolyte filling through this channel. The electrolyte filling performs in dry room. The electrolyte is injected in two times so that it can be filled easily and sufficiently. When filling, vacuum first, then inject electrolyte. After that, we repeat vacuum and vent to room pressure several times. Finally the cell is put off at room pressure, then weigh the cell in order to check the amount of electrolyte. After weighing, we seal with tape onto the filling port to prevent the cells absorbing water during storing. We store the filled cells for 24 hours at room temperature so that the electrolyte can be saturated sufficiently by the anodes and cathodes. Vocabulary: oven drying 烘烤vacuum 真空electrolyte filling 注液electrolyte 电解液 room pressure 大气压filling port 注液孔storing 陈化saturated 浸润 anode 正极cathode 负极 Pre-charge and ball seal At first, we place a piece of absorb cotton above the filling port to absorb the excess electrolyte. This is the first process. The second process is performing a pre-charge at 0.1C rate for 390 minutes. After the pre-charge, we take a voltage checking to the cell at once. If the voltage is lower than the standard, it needs to be re-charged. The fourth process is the ball seal. we must complete this process in 15 minutes. First, put the steel ball in the right place. Then, give pressure to it so that the steel ball can fill the filling port. In the whole process, we must make sure that the temperature and humidity are in the regular range. Finally, the process is cleaning to eliminate the electrolyte on the cell surface with acetone solvent. Vocabulary: filling port 注液孔electrolyte 电解液pre-charge 预先充电ball seal 封口voltage checking 量电压regular range 合格范围eliminate 消除 acetone solvent 丙酮溶剂 Aging and Formation This is the aging room. We age cells at 35~40 Degree C for 7 days. The temperature is controlled by two heating instruments which are set at 38 Degree C. Then we transfer cells to the testing workshop. First, we check the voltage of cells with multi-meters. According to voltage, we divide the cells into acceptables and defects. Formation is done at 1.0 Capacity rate for 140 minutes to 4.2 Voltage. After that, check thickness and impedance. At last, we transfer the acceptables to the storehouse. Vocabulary: aging room 老化房heating instrument 加热器testing workshop 检测车间acceptables 良品defects 次品formation 化成thickness 尺寸,厚度 impedance 内阻storehouse 仓库 标识牌内容(中文) 英文 1 正极球磨Cathode Ball Mill Mixing 2 负极球磨Anode Ball Mill Mixing 3 正极混浆Cathode Slurry Mixing 4 负极混浆Anode Slurry Mixing 5 正极涂布Cathode Coating 6 负极涂布Anode Coating 7 极片烘烤Electrode Drying 8 正极压片Cathode Compress 9 负极压片Anode Compress 10 正极分大片Cathode Cutting 11 正极分小片Cathode Slitting 12 负极分大片Anode Cutting 13 负极分小片Anode Slitting 14 切镍带Anode Tab Cutting 15 极耳铆接Anode Riveting 16 极耳贴胶纸Anode Tab Taping 17 大片贴胶纸Cathode Edge Taping 18 刷片Electrode Brushing 19 极耳超焊#1 Cathode Tab Welding #1 装配车间英语 极片烘烤Electrode Drying Area裁隔膜纸Separator Cutting 壳体贴膜Out-film Apply超焊铝镍带Cathode Tab Welding 贴内壁胶纸Inner Insulation Taping卷绕Jelly Roll Winding 检验#1 Checking Station#1整形Jelly Roll Forming 贴侧面胶纸J/R Side Taping贴上端胶纸J/R Top Taping 贴底部胶纸J/R Bottom Taping装壳Jelly Roll Insertion 点焊负极Anode Tab Welding剪正极耳Cathode Tab Cutting 超焊正极耳#2 Cathode Tab Welding #2二次点焊Spot Welding 套隔圈Insulator Insertion甩壳Final J/R Insertion 卡盖板Cap Installation检验#2 Checking Station #2 点焊盖板Cap Pre—Welding激光焊接Laser Seam welding 整形Forming检验漏气Leak Checking 短路测试Hi—pot称重分档Weighing Sorting