Detection system and test method for electrochemical reaction of battery

The detection system, which combines optical detection and magnetic resonance excitation units, solves the problem of simultaneous detection of multiple parameters at the nanoscale in real battery environments, and realizes in-situ dynamic detection of battery electrochemical reactions.

CN121856833AActive Publication Date: 2026-04-14CHINA JILIANG UNIV
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Patent Information

Application Number
CN202610312894.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-16
Publication Date
2026-04-14
Estimated Expiration
2046-03-16

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve in-situ dynamic detection of battery electrochemical reactions at the nanoscale and with multiple parameters synchronized in a real battery environment.

Method used

By employing a combination of optical detection unit, magnetic resonance excitation unit, and data processing unit, and utilizing NV color center detector, excitation optical path, and collection optical path, combined with magnetic resonance excitation signal and electrochemical testing unit, magnetic signals, electrical signals, and thermal signals in the battery electrochemical reaction are acquired in real time.

Benefits of technology

It enables in-situ dynamic detection of battery electrochemical reactions at the nanoscale and with multiple parameters synchronized in a real battery environment, acquiring magnetic, electrical, and thermal signals during the battery electrochemical reaction process.

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Abstract

The invention discloses a battery electrochemical reaction detection system and a test method. The system comprises an optical detection unit, a magnetic resonance excitation unit and a data processing unit, the optical detection unit comprises an NV color center detector, and the NV color center detector is connected with the magnetic resonance excitation unit and placed in a battery electrochemical reaction solution sample to be detected; the magnetic resonance excitation unit is used for outputting a magnetic resonance regulation and control signal, influencing the quantum spin state of the NV color center and changing the intensity of an NV fluorescence signal, the collection light path collects the intensity of the fluorescence signal to the data processing unit, and an NV color center ground state spin resonance spectrum is obtained; and the data processing unit acquires the NV color center ground state spin resonance spectrum, and acquires the detection of magnetic signals, electric signals and thermal signals in the electrochemical reaction process of the battery by combining the difference response of the external magnetic field and the electric field to the NV color center ground state spin resonance frequency shift. And nanoscale and multi-parameter synchronous in-situ dynamic detection in a real battery environment is realized.
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