Battery Manufacturing Process
Creating an electric vehicle battery involves a meticulous and precise manufacturing process that integrates various stages, technologies, and quality control measures.
Here's a detailed overview of the key steps involved:
Raw Material Selection
We provide end-to-end support. Our team offers on-site training to ensure your staff is proficient in operating and maintaining the machines. We also provide ongoing technical assistance, troubleshooting, and maintenance services.
Mixing and Paste Preparation
The next step involves preparing the active material paste, which is a critical component of the battery. Lead oxide and other additives are mixed with water to create a homogeneous paste. This paste serves as the cathode and anode material in the battery.
Grid Production
The battery's grid structure, typically made of lead or lead alloy, provides structural support and electrical connectivity. Grid production involves casting or stamping processes to shape the grids. These grids act as the framework for holding the active material.
Plate Pasting
The prepared active material paste is applied onto the grid structure through a process known as plate pasting. This ensures the adherence of active materials to the grid, forming the positive and negative plates of the battery.
Curing and Drying
Once the plate pasting is complete, the battery plates undergo a curing and drying process. This step allows the active material to adhere firmly to the grids and promotes optimal chemical reactions during battery operation.
Assembly and Formation
In the assembly stage, the battery plates are combined with separators, typically made of microporous material, to prevent electrical short circuits. These plate-separator assemblies are then stacked to form the battery's core structure. The stacked assembly is placed in a battery container, and intercell connections are made.
The battery is now ready for the formation process, where an initial charge is applied to activate the electrochemical reactions within the battery. Formation helps stabilize the battery's performance and ensures its longevity.
Acid Filling and Sealing
After formation, the battery undergoes acid filling, where precise amounts of sulfuric acid electrolyte are injected into each cell. The acid electrolyte enables the flow of ions between the positive and negative plates, facilitating the battery's electrical output.
Quality Control and Testing
Throughout the entire manufacturing process, rigorous quality control measures are implemented to verify the battery's performance, safety, and reliability. Various tests, such as capacity testing, voltage testing, and leak testing, are conducted to ensure that each battery meets the required specifications and standards.
Finishing and Packaging
In the final stage, the batteries undergo finishing processes, including cleaning, terminal installation, and labeling. The batteries are then carefully packaged to protect them during transportation and storage, ensuring they reach customers in optimal condition.
Our Partners
US: California
US: Virginia & Tennessee
Korea: Dongtan
- ISMC Inc.
Singapore
- Global SMT PTE. LTD.
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