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Overview: Sodium battery positive electrode sheet, nickel iron manganese oxide sodium double-sided electrode sheet
Main Parameters
Item | Parameter |
Size | 241mm L x200mm W |
Coating area | 241mm Lx 175mm W(each side blank 12.5mm) |
Coating side | Double side coating |
Current collector thickness | 16μm |
Coating surface density | 29±0.4mg/cm2 |
Aluminum Foil surface density | 4.22mg/cm2 |
Tap density | 2.8±0.1g/cm3 |
Active substance mass fraction | 95.5% |
Reference specific capacity | 110mAh/g |
Full-cell voltage platform | 1.5-4.0V |
Calculation of active substance mass | Coating surface density * proportion of active substance * electrode size |
Matters need attention | After opening the electrode sheet, please seal and store it. Can be stored in a 60 ℃ oven or glove box. The sheet is prone to water absorption and should be kept in contact with regular air for as little time as possible |
Reference for double-sided electrode sheet process for pouch cell
Process flow | Reference parameter |
Capacity setting | Capacity per gram * Single piece area * Coating surface density * Proportion of active substance |
Electrode cutting | Punch and cut fixed size positive and negative electrode pieces |
Stacking | According to the designed number of layers for the electrode sheet, stack them together |
Hot pressing and micro short circuit testing | Hot pressing time 2 minutes, temperature 45 ℃ |
Tab welding | Positive electrode welded aluminum tab, negative electrode welded aluminum tab |
Forming | Aluminum laminated film with appropriate depth and fixed size |
Top and side sealing | Pre-treatment of pouch batteries |
Cell baking | Temperature 80 ℃, time 12 hours |
Electrolyte filling | Inject a certain amount of electrolyte |
Vacuum pre-sealing | Pouch cell pre-sealing |
IR testing | Test voltage and internal resistance |
Aging | Temperature 45 ℃, time 12 hours |
Formation | Small current formation |
Aging | Temperature 45 ℃, time 12 hours |
Final sealing | Extract internal gas from the battery and vacuum seal it |
IR Test | Test voltage and internal resistance |
Grading | Confirm the capacity |


Company Profile

Xiamen AOT battery equipment Technology Co LTD was set up as a manufacturer in 2006. We have total manufacturing facilities of around 4, 000 square meters and more than 65 staff. Owning a group of experienced engineers and staffs, we can bring you not only reliable products and technology, but also excellent services and real value you will expect and enjoy. AOT Battery has been focused on product development and operations of lithium battery and its surrounding, we supply full kinds of lithium-ion battery equipment, lab battery raw materials and lithium-ion battery research and development technology.

Exhibition

AOT Lithium Battery Equipment exhibition provides exhibitors and visitors with a comprehensive platform for display, exchange, cooperation and trade. By participating in the exhibition, enterprises can understand the industry dynamics, expand market channels, enhance brand image and promote technological innovation and industrial upgrading.
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FAQ
Q1:How long do you need to prepare my goods?
A: 3-5 days for battery materials. 5-25 days for equipment (based on different model and quantities).
Q2:Can we have our logo or company name to be printed on products or package?
A: Sure. your logo could be printed on your products by hot stamping, printing, embossing, UV coating, silk-screen printing or sticker. In order to explore the market better and provide more convenient services to global customers, we sincerely invite overseas agent to create bright future together.
Q3:How can I install and operate the machine by myself?
A: Our system R&D based on integrated development view. when you get the machine, just need to connect it with the electrical power, then machine can be working. because the English software were installed in this machine. what you need to do is only learning the software usage, and the complete English user manual will be coning to you with the machine.
Q4:How to get technical support after purchasing?
A: Our factory provide online technical support in English , you can easy catch us online by Skype, Wechat, and Email, if you need any remote assistant support, then we will support you though Team Viewer.
Contact: Lika
Phone: +86-19906035385
Tel: 0086-592-7161550
Email: sales@aotbattery.com
Add: No.168, Zhaogang Road, Xiamen City, China