锂电工序英文名称

1、Cathode slurryThis is the cathode slurry mixing room. First ,we mix the powder with NMP in the mixing tank .And the NMP is added to the mixing tank in three times. Add more NMP to the mixing tank to adjust the slurry viscosity. Finally, transfer the slurry to the coating line after slurry sifting.An

2、ode slurryThis is the anode powder process. First, we mix CMC with water in that anode binder mixing room, and after weighing, the raw material is transferred into the mixing tank. Then, we add the anode binder solution to the mixing tank in 3 times. After that, we add the SBR for the final mixing.

3、and then, we add more water to adjust the slurry viscosity. Next we sift the slurry in that sifting room. Finally, we transfer the finished slurry to the coating line.Vocabulary:viscosity 粘性 sifting 筛CoatingNow, we are in coating line. We use back reverse coating. This is the slurry-mixing tank. The

4、 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. There are four temperature zones, they are independently controlled. Zone one sets at 55 degree C, zone tw

5、o 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

6、 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)

7、roll 收卷 evenly/uniformly 均匀 oven烘箱 evaporate 蒸发 electrode 极片ElectrodeAfter 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

8、 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 proces

9、s 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

10、短路 slit分切 ultrasonic 超声波 weld 焊接Anode makingIn anode making process, we cut the nickel roll 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

11、. We also tape the rivet section to prevent any possible internal short. And finally, we clean the finished electrodes with vacuum and brush.Jelly rollThis 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 sw

12、itch 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 te

13、rmination 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:When winding to the end of the anode, covering the anode completely by the separator.In the whole process, it is the

14、 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

15、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&insertingPut 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 elect

16、rode 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

17、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

18、 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 weldingThis is the Laser welding room! The first process is welding for the aluminum cap, specially connect the rivet with the

19、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.Vocabul

20、ary: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 storingThis is the process of cells oven drying at 80C for more than 12 hours under vacuum. After oven drying, the

21、 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 vacuu

22、m 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

23、 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，国anode 正极cathode 负极Pre-charge and ball sealAt first, we place a piec

24、e 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 t

25、o 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voltage checking 量电压ball seal 封口regular range 合格范围eliminate 消除acetone solvent 丙酮溶剂Aging and Forma