A monobloc battery needle test method
CN117310539BActive Publication Date: 2026-08-28HEFEI GUOXUAN HIGH TECH POWER ENERGY
Patent Information
- Application Number
- CN202311122657.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-31
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2043-08-31
AI Technical Summary
Technical Problem
[0004]基于此，针对目前在进行电池浅针刺测试时，通过目视或针尖行进到胶带覆盖位置算为针刺起点，这种方法存在的问题是结果一致性很差的技术问题，提供一种单体电池针刺测试方法
Benefits of technology
[0023]1.本发明在针刺过程中实时采集待测单体电池的正极与刺针之间的电压，以待测单体电池的正极与刺针之间的电压达到预定电压时的刺针位置为起点，驱使刺针继续行进预定深度，确保了针刺起点的一致性，从而确保刺针能够刺入到电池内预定深度，从而提升浅针刺结果的一致性。
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Smart Images
Figure CN117310539B_ABST
Abstract
The application relates to a single battery needle puncture test method, which comprises the following steps: S1. charging a pretreated single battery in a low SOC state to 100% SOC and then transferring the single battery to a needle puncture machine; S2. driving a needle of the needle puncture machine to puncture into the single battery, collecting the voltage between the positive electrode of the single battery and the needle, and driving the needle to continue to puncture into the single battery to a predetermined depth when the voltage between the positive electrode of the single battery and the needle reaches a predetermined voltage. In the needle puncture process, the voltage between the positive electrode of the single battery and the needle is collected in real time, the position of the needle when the voltage between the positive electrode of the single battery and the needle reaches the predetermined voltage is taken as the starting point, the needle is driven to continue to travel to the predetermined depth, the consistency of the starting point of the needle puncture is ensured, and therefore the consistency of the shallow needle puncture result is improved.
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Citation Information
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