Research community has realized the critical meaning of the reliable cell fabrication towards the valuable and reproducible battery study. As a good foundation of the whole battery research area, the cell fabrication should get more attention from the researchers. As we discussed in this article, there are many factors that do highly impact the reproducibility of the cell fabrication. Some of them such as electrode coating thickness control, dryness of components, or electrode alignment, are fall in engineering control strategy in manufacturing definition. There are scientific and engineering meanings behind every parameter determination. However, those studies are time consumable, experience/facility dependent, and not always aligned with academic research and study interests. Therefore, systematic investigation on those key parameters that affect the cell quality and performance is still rare, comparing with numerous publications on material or electrochemistry studies in the battery research area.

On one hand, we hope more research teams can get engaged in investigation and studying in this area to help provide solid evidence and analysis that would benefit the whole battery research community. One the other hand, we also hope this article can arise researchers’ attention to these factors and to further understand the physical and chemical parameters that link to the factors, thus, finding appropriate process, method, or solution to achieve reproducible and reliable results, based on the working condition and facility capability. Some of those factors, can be linked to certain physical parameters that can be measured and monitored. For example, the uniformity of the electrode control can be linked to viscosity of the slurry and particle size distribution, which can be measured by viscometer/rheometer, and particle analyzer, respectively. In electrolyte preparation, water content should be always tracked either by Karl-Fisher titration or NMR. For those physical parameters, researchers can pick appropriate lab-scaled characterization equipment and tools. Here we even suggest researchers add those characterization data to their publication, which not only provide better understanding of material property and process details, but also provide reference for further study.

Besides, when researchers investigate novel materials or components, selection of appropriate cell format and cell design that targeting different applications should also be taken into consideration. To eliminate errors that may brought by certain process or components is also an effective way to improve reproducibility and reliability. For example, in some study, single-layer pouch format cell with very small electrode area may not show better data consistency than a group of coin format cell with error analysis, due to its more complicated fabrication process, as well as difficult pressure control.

In order to further improve the cell fabrication reproducibility in the battery study, research groups and institutes should try to involve more auto- or semi auto- equipment in the cell fabrication process to largely eliminate the system errors by manual operation process. On the other hand, it could be a question and challenge for equipment manufacturers to make the appropriate lab-scale instruments to meet both technical requirement and budget limit. Besides, in some study, using electrode from commercial source, or any capable facility (e.g., large quantity electrode coating, pilot level equipment and facility) can help reduce much effort while achieve better consistency in electrolyte, separator, or special surface coating screening and evaluation, comparing with manually making the electrode in-house.

In this perspective article, we discussed some key factors in LBs cell preparation and evaluation. We hope this article can help not only draw attention from the battery research community on the impact of those factors and parameters on the final result reproducibility and reliability but also provide some initial solution and thought to address the questions. Aside from the extended study efforts, we also hope there will be further discussions on comprehensive cell preparation and evaluation protocols to provide operation standard and comparison baseline for future battery research and development. All these efforts can help bridge the gap between fundamental study and practical application of the LBs technology.

Lithium Battery Production Line

HuazhongCNC lithium battery assembly linelithium battery assembly lines are divided into four categories, square shell battery module assembly line, soft pack battery module assembly line, cylindrical battery module assembly line, and AGV PACK line.

Based on intelligent robots and information-based manufacturing technology, the lithium battery production line can realize flexible and intelligent production. The whole process adopts the information acquisition module to monitor the entire production line, and the central control system controls the entire production process. The production process adopts robot instead of manual production, and very few stations are set up with manual intervention, and the degree of automation is high.

On one hand, we hope more research teams can get engaged in investigation and studying in this area to help provide solid evidence and analysis that would benefit the whole battery research community. One the other hand, we also hope this article can arise researchers’ attention to these factors and to further understand the physical and chemical parameters that link to the factors, thus, finding appropriate process, method, or solution to achieve reproducible and reliable results, based on the working condition and facility capability. Some of those factors, can be linked to certain physical parameters that can be measured and monitored. For example, the uniformity of the electrode control can be linked to viscosity of the slurry and particle size distribution, which can be measured by viscometer/rheometer, and particle analyzer, respectively. In electrolyte preparation, water content should be always tracked either by Karl-Fisher titration or NMR. For those physical parameters, researchers can pick appropriate lab-scaled characterization equipment and tools. Here we even suggest researchers add those characterization data to their publication, which not only provide better understanding of material property and process details, but also provide reference for further study.

Besides, when researchers investigate novel materials or components, selection of appropriate cell format and cell design that targeting different applications should also be taken into consideration. To eliminate errors that may brought by certain process or components is also an effective way to improve reproducibility and reliability. For example, in some study, single-layer pouch format cell with very small electrode area may not show better data consistency than a group of coin format cell with error analysis, due to its more complicated fabrication process, as well as difficult pressure control.

In order to further improve the cell fabrication reproducibility in the battery study, research groups and institutes should try to involve more auto- or semi auto- equipment in the cell fabrication process to largely eliminate the system errors by manual operation process. On the other hand, it could be a question and challenge for equipment manufacturers to make the appropriate lab-scale instruments to meet both technical requirement and budget limit. Besides, in some study, using electrode from commercial source, or any capable facility (e.g., large quantity electrode coating, pilot level equipment and facility) can help reduce much effort while achieve better consistency in electrolyte, separator, or special surface coating screening and evaluation, comparing with manually making the electrode in-house.

If you are looking for more details, kindly visit high-output battery pack assembly line.

In this perspective article, we discussed some key factors in LBs cell preparation and evaluation. We hope this article can help not only draw attention from the battery research community on the impact of those factors and parameters on the final result reproducibility and reliability but also provide some initial solution and thought to address the questions. Aside from the extended study efforts, we also hope there will be further discussions on comprehensive cell preparation and evaluation protocols to provide operation standard and comparison baseline for future battery research and development. All these efforts can help bridge the gap between fundamental study and practical application of the LBs technology.

Lithium Battery Production Line

HuazhongCNC lithium battery assembly lines are divided into four categories, square shell battery module assembly line, soft pack battery module assembly line, cylindrical battery module assembly line, and AGV PACK line.

Based on intelligent robots and information-based manufacturing technology, the lithium battery production line can realize flexible and intelligent production. The whole process adopts the information acquisition module to monitor the entire production line, and the central control system controls the entire production process. The production process adopts robot instead of manual production, and very few stations are set up with manual intervention, and the degree of automation is high.

For more information, please visit prismatic lithium battery production line.