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Test Methods and Standards for Cathode and Anode Battery Tabs
Aug 25,2022
For cylindrical lithium ion batteries, the cathode electrode uses aluminum strips as the cathode battery tabs, because it needs to be welded on the cap by ultrasonic spot welder, therefore, it is necessary to have good welding strength.
| NO. | Items | Specifications |
| 1 | Appearance | Uniform color, no oil, bright and smooth surface, no burr, no oxidation, etc. |
| 2 | Thickness（mm） | 0.10±0.02 |
| 3 | Width | Refer to the specification of the specific model (tolerance ±0.05mm) |
| 4 | Length | Refer to the specification of the specific model (tolerance ±0.05mm) |
| 5 | Flexibility | 180° fold 6 times without breaking. |
| 6 | Welding performance | When the surface of the battery tabs welding is covered with aluminum foil, it is qualified. |
For cylindrical lithium ion batteries, the anode electrode uses nickel strips as the anode battery tabs, because it needs to be welded on the bottom of the battery cans, therefore, it is also necessary to have good welding strength.
| NO. | Items | Specifications |
| 1 | Appearance | Uniform color, no oil, bright and smooth surface, no burr, no oxidation, etc. |
| 2 | Thickness（µm） | Refer to the specification of the specific model (tolerance ±0.02mm) |
| 3 | Width | Refer to the specification of the specific model (tolerance ±0.05mm) |
| 4 | Length | Refer to the specification of the specific model (tolerance ±0.05mm) |
| 5 | Flexibility | 180° fold 4 times without breaking. |
| 6 | Welding performance | More than 2/3 of the welded surface of the anode battery tabs is covered with copper foil, it is qualified. |
TOB New Energy provides customizable battery tabs, aluminum tab, nickel tab for lithium ion battery.
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