锂电池英文生产流程

1、锂电池英文生产流程Mixing（配料）Mix solve nt and bound separately with positive and n egative active materials. Make into positive and n egative pasty materials after stirring at high speed till uniformity.Coati ng （涂布）Now, we are in coating line. We use back reverse coati ng. This is the slurry-mixi ng tank. Th

2、e anode（Cathode） slurry is introduced to the coati ng header by pn eumaticity from the mixing tank. The slurry is coated uniformly on the copper foil, the n the solve nt is evaporated in this oven.（下面的依据情况而定）There are fourtemperature zones, they are independently con trolled. Zone one sets at 55 deg

3、ree 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 coat ing is 4 meters per minu te.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 degr

4、ee C.Throughout the coati ng, we use micrometer to measure the electrode thickness per about 15 minutes. We do this in order to keep the best con siste ncy of the electrode.Vocabulary:coati ng line 涂布车间back reverse coati ng辊涂 coati ng header涂布机头Al/copper foil 铝 /铜箔 degree C 摄氏度 temperature zones 温区w

5、ind to be a (big) roll 收卷 evenly/uniformly 均匀 oven烘箱evaporate 蒸发electrode 极片Cutti ngCut a roll of positive and negative sheet into smaller sheets accordi ng to battery specificati on and pun chi ng request.Press ingPress the above positive and n egative sheetstill they become flat.PunchingPunching s

6、heets into electrodes accordi ng to battery specificati on,ElectrodeAfter coati ng we compress the electrode with this cylindering machine at about 7meters per mi nute. Before compress we clea n the electrode with vacuum and brush to elimi nate any particles. Then the compressed electrode is wound t

7、o a big roll. We use micrometer to measure the compressed electrode thickness every 10 minu tes. After compress ing we cut the web into large pieces. We tape the cathode edge to preve nt any possible internal short. The large electrode with edge taped is slit in to smaller pieces. This is ultras oni

8、c process that alumi num tabs are welded onto cathodes using ultras onic weld machine. We tape the weld section to preve nt any possible in ternal short. And fin ally, 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in t

9、ernal short 内部短路 slit分切ultrasonic超声波 weld 焊接Anode makingIn anode making process, we cut the material into certain length strips. At the mean time, we put a small piece of in sulati on tape to the tab in order to prevent any possible internal short. Then the prepared nickel tab is riveted on anode an

10、d pat pla in. We also tape the rivet secti on to preve nt any possible in ternal short. And fin ally, we clean the finished electrodes with vacuum and brush.Jelly rollThis is Jelly roll, a manual wi ndi ng process. In the course of Jelly roll, firstly, we place the separator in betwee n cen tral pin

11、s, press the foot switch to turn cen tral pi ns about 120 degrees. Secon dly, place the anode to the edge of cen tral pins, and tur n cen tral pins about 180 degrees. Lastly, place the cathode to the edge of cen tral pins. During the winding process, we apply tension by press ing the electrodes and

12、the separator. We put the term in ati on tape at the end.After Jelly roll, we check the short circuit, then form the Jelly roll by press ing, so that it is easier to in sert the Jelly roll into the can.Con trol poi nts:1. When winding to the end of the anode, coveri ng the anode completely by the se

13、parator.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 be

14、fore short check ing.Vocabulary:Jelly roll卷绕Man ual手工的Separator隔膜纸central pin卷针foot switch脚踏开关an ode 负极片cathode 正极片term in ati on tape 尾端胶纸 short circuit 短路alig nment 整齐Tap ing & in sert ingPut the tape on the two side of J/R, Topreve nt J/R being hurt in the in serti on process.Put a piece of t

15、ape betwee n cathode tab andJ/R .Because anode electrode is wider tha n cathode electrode.Put the bottom tape.Insert the finished J/R into the can manually and the n short circuit check by multi-meter.Spot welding Ni tab to cap.Ultrasonic welding the Al tab to cap using ultras onic weld.We have the

16、sec ond spot weldi ng to en sure the best con tact betwee n the tab and cap.Apply top insulator, to prevent Ni tab con tact ing with can.Final J/R insertion by the centrifuge.Cap positi oning by hand. Then check the cap in the suitable positi on, or the defects is put into red bin ,Finally , short c

17、ircuit check again to en sure that there be no in ter nal short J/R flow ing to n ext 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 weldi ngThis is the Laser welding room! The first

18、 process is welding for the aluminum cap, specially conn ect the rivet with the weld plate to preve nt the cell impeda nee excursi on.The second process is the Laser seam welding. In the process, it must ensure the inten sity and airproof characters of the weld.After the cell is welded, we would per

19、form the leak check ing, the short circuit check ing and the weighi ng check ing.Vocabulary:Laser welding room 激光焊接车间 Cap 盖 板Rivet 铆钉 Plate镍片impeda nee excurs ion内阻漂移inten sity强度 leak check ing检漏short circuit checking测短路weighingcheck ing 称重Oven drying electrolyte filling and storingThis is the proce

20、ss of cells oven drying at 80 °C 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-es =eq pue &eLIO©d罡岐

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23、匸 u A-4U otns pue A=se p -匸 eq ueo 七-CULI4At first, we place a piece of absorb cott on above the filling port to absorb the excess electrolyte. This is the first process.The sec ond process is perform ing a pre-charge at 0.1C rate for 390 minu tes.After the pre-charge, we take a voltage check ing to

24、 the cell at on ce. If the voltage is lower tha n the sta ndard, it n eeds to be re-charged.The fourth process is the ball seal. we must complete this process in 15 minu tes.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 th

25、e whole process, we must make sure that the temperature and humidity are in the regular ran ge.Fi nally, the process is clea ning to elimi nate the electrolyte on the cell surface with acet one solve nt.Vocabulary:filli ng port注液孔 electrolyte 电解液pre-charge预先充电ball seal圭寸口voltage check ing量电压 regular

26、 range 合格范围eliminate 消除acet one solve nt 丙酮溶剂Aging and Formati onThis is the agi ng room. We age cells at 3540 Degree C for 7 days. The temperature is con trolled by two heat ing in strume nts which are set at 38 Degree C. Then we transfer cells to the testing workshop. First, we check the voltage o

27、f cells with multi-meters. Accord ing to voltage, we divide the cells into acceptables and defects. Formati on is done at 1.0 Capacity rate for 140 minu tes to 4.2 Voltage. After that, check thick ness and impeda nee. At last, we tran sfer the acceptables to the storehouse.aging room老化房 heating instrument力口热器 testing workshop检测车间acceptables 良品 defects 次品 formation 化成thickness 尺寸，厚度impedanee 内阻 storehouse 仓库标识牌内容（中文）英文1 正极球磨 Cathode Ball Mill Mixing 球磨 Anode Ball Mill Mixing3 正极混浆 Cathode Slurry Mixing 极混浆 Anode Slurry Mixing5 正极涂布 Cathode Coat