New energy battery detection method and system

Abstract

The invention relates to the technical field of battery detection, in particular to a new energy battery detection method which comprises the following steps: step 1, physical and appearance detection; step 2, electrochemical performance testing, including voltage testing, internal resistance testing and capacity testing; 3, monitoring the voltage, the temperature and the residual electric quantity in real time, and analyzing a fault code and operation data; and 4, testing safety and environmental adaptability, including a thermal stability test and a mechanical test. The battery management system monitors the state of the battery in real time, balances the voltage of the battery cell, prevents overcharge / overdischarge, provides data support, and evaluates the actual energy storage capacity through electrochemical performance tests including voltage tests, internal resistance tests and capacity tests and through a constant-current discharge method, a constant-voltage charge method or a capacity tester. The voltage, the temperature and the residual electric quantity are monitored in real time, fault codes and operation data are analyzed, and therefore the method has the advantages of being high in detection efficiency, capable of monitoring the data in real time, high in practicability and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of battery detection, and in particular to a new energy battery detection method and system. Background Art

[0002] As global carbon neutrality goals advance, the new energy vehicle market is rapidly expanding. Batteries, as core components, have a direct impact on vehicle range, safety, and affordability, creating an urgent need for high-precision detection technology.

[0003] As new energy vehicle batteries age, they will experience problems such as capacity decay and increased internal resistance, leading to reduced battery life and safety hazards.

[0004] Traditional detection methods mostly rely on visual inspection, manual voltage testing, etc., which are inefficient and cannot monitor data in real time, making them less practical. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the present invention provides a new energy battery detection method and system, which has the advantages of high detection efficiency, real-time monitoring of data, and high practicality, and solves the above-mentioned problems.

[0007] (2) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A new energy battery detection method includes the following steps:

[0010] Step 1: Physical and appearance inspection;

[0011] Step 2: Electrochemical performance test, including voltage test, internal resistance test and capacity test;

[0012] Step 3: Monitor voltage, temperature, and remaining power in real time, and analyze fault codes and operating data;

[0013] Step 4: Safety and environmental adaptability testing, including thermal stability testing and mechanical testing.

[0014] Preferably, the step 1 includes visual inspection: observing whether the battery casing is bulging, deformed, or leaking, and whether the terminal is oxidized or corroded; observation port detection: some batteries are quickly judged by color identification (black / scrap, yellow / low power, green / normal), but other methods need to be combined for verification.

[0015] Preferably, in step 2, the voltage test: measures whether the cell voltage is consistent, if it is lower than 12V, be cautious, if it is higher than 12V, it is normal; the internal resistance test: uses a special instrument to measure the internal resistance, too high indicates aging or damage; the capacity test: evaluates the actual energy storage capacity through constant current discharge method, constant voltage charging method or capacity tester.

[0016] Preferably, the thermal stability test in step 4: simulates a high temperature environment to verify battery safety; the mechanical test: vibration, drop, and salt spray tests to evaluate impact resistance and corrosion resistance.

[0017] A new energy battery detection system includes a battery management system, an automated testing platform, a third-party detection system, and a software diagnostic system.

[0018] Preferably, the battery management system: monitors the battery status in real time, balances the cell voltage, prevents overcharge / over-discharge, and provides data support; the automated testing platform includes: a charge and discharge test system and an environmental simulation device, wherein the charge and discharge test system: simulates actual working conditions and records parameters such as capacity and efficiency; the environmental simulation equipment: a high and low temperature chamber, a salt spray chamber, etc., tests the performance of the battery under extreme conditions; the third-party detection system includes detection by professional institutions; the software diagnostic system reads battery data through the OBD interface, analyzes fault codes, and generates a health report.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the present invention provides a new energy battery detection method and system, which has the following beneficial effects:

[0021] 1. The present invention uses a battery management system to monitor the battery status in real time, balance the battery cell voltage, prevent overcharging / overdischarging, provide data support, and conduct electrochemical performance tests, including voltage testing, internal resistance testing, and capacity testing. It evaluates the actual energy storage capacity through a constant current discharge method, a constant voltage charging method, or a capacity tester, monitors the voltage, temperature, and remaining power in real time, and analyzes fault codes and operating data. Therefore, this method has the advantages of high detection efficiency, real-time data monitoring, and high practicality.

[0022] 2. The present invention verifies battery safety by simulating high-temperature environments, and evaluates impact resistance and corrosion resistance through vibration, drop, and salt spray tests. It also simulates actual operating conditions through a charge and discharge test system and records parameters such as capacity and efficiency. It also tests the battery's performance under extreme conditions through high and low temperature chambers, salt spray chambers, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a block diagram of the new energy battery detection system of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The present invention relates to a new energy battery detection method, comprising the following steps:

[0026] Step 1: Physical and appearance inspection;

[0027] Step 1 includes a visual inspection: observe whether the battery casing is bulging, deformed, or leaking, and whether the terminal is oxidized or corroded; observation port inspection: some batteries use color identification (black / scrap, yellow / low power, green / normal) to quickly determine the status, but other verification methods must be combined;

[0028] Step 2: Electrochemical performance test, including voltage test, internal resistance test and capacity test;

[0029] Step 2: Voltage test: Measure the consistency of cell voltages. If the voltage is lower than 12V, be cautious. If it is higher than 12V, it is normal. Internal resistance test: Use a dedicated instrument to measure the internal resistance. A high resistance indicates aging or damage. Capacity test: Use the constant current discharge method, constant voltage charge method or capacity tester to evaluate the actual energy storage capacity.

[0030] Step 3: Monitor voltage, temperature, and remaining power in real time, and analyze fault codes and operating data;

[0031] Step 4: Safety and environmental adaptability testing, including thermal stability testing and mechanical testing. Thermal stability testing: simulates high temperature environment to verify battery safety; mechanical testing: vibration, drop, and salt spray tests to evaluate impact resistance and corrosion resistance.

[0032] A new energy battery testing system, including a battery management system, an automated testing platform, a third-party testing system, and a software diagnostic system;

[0033] Battery management system: real-time monitoring of battery status, balance of battery cell voltage, prevention of overcharge / over-discharge, and provision of data support; automated testing platform includes: charge and discharge test system and environmental simulation equipment, of which the charge and discharge test system simulates actual operating conditions and records parameters such as capacity and efficiency; environmental simulation equipment includes high and low temperature chambers, salt spray chambers, etc., to test battery performance under extreme conditions; third-party testing system includes testing by professional institutions; software diagnostic system reads battery data through the OBD interface, analyzes fault codes, and generates health reports.

[0034] The beneficial effects of the present invention are: the present invention observes whether the battery shell is bulging, deformed, or leaking, and whether the terminal is oxidized or corroded, and quickly judges the status of some batteries through color identification (black / scrapped, yellow / low power, green / normal). The battery management system monitors the battery status in real time, balances the battery cell voltage, prevents overcharging / over-discharging, provides data support, and conducts electrochemical performance tests, including voltage testing, internal resistance testing, and capacity testing. The actual energy storage capacity is evaluated through a constant current discharge method, a constant voltage charging method, or a capacity tester. The voltage, temperature, and remaining power are monitored in real time, fault codes and operating data are analyzed. The battery safety is verified through a simulated high-temperature environment, and the impact resistance and corrosion resistance are evaluated through vibration, drop, and salt spray tests. The actual working conditions are simulated through a charge and discharge test system to record parameters such as capacity and efficiency. The performance of the battery under extreme conditions is tested through high and low temperature chambers, salt spray chambers, etc., so that the method has the advantages of high detection efficiency, real-time monitoring of data, and high practicality.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new energy battery detection method, characterized in that: The following steps are involved: Step 1: Physical and appearance inspection; Step 2: Electrochemical performance test, including voltage test, internal resistance test and capacity test; Step 3: Monitor voltage, temperature, and remaining power in real time, and analyze fault codes and operating data; Step 4: Safety and environmental adaptability testing, including thermal stability testing and mechanical testing.

2. A new energy battery detection method according to claim 1, characterized in that: Step 1 includes visual inspection: observing whether the battery casing is bulging, deformed, or leaking, and whether the terminal is oxidized or corroded; observation port inspection: some batteries can quickly determine their status through color identification, but other verification methods must be combined.

3. A new energy battery detection method according to claim 1, characterized in that: In the step 2, the voltage test is used to measure whether the cell voltage is consistent. If it is lower than 12V, be cautious. If it is higher than 12V, it is normal. The internal resistance test is used to measure the internal resistance using a dedicated instrument. A high resistance indicates aging or damage. The capacity test is used to evaluate the actual energy storage capacity through the constant current discharge method, the constant voltage charge method or the capacity tester.

4. A new energy battery detection method according to claim 1, characterized in that: The thermal stability test in step 4 is to simulate a high temperature environment to verify battery safety; the mechanical test is to perform vibration, drop, and salt spray tests to evaluate impact resistance and corrosion resistance.

5. A new energy battery detection system, based on the new energy battery detection method according to any one of claims 1 to 4, characterized in that: Including battery management system, automated testing platform, third-party detection system and software diagnostic system.

6. A new energy battery detection system according to claim 5, characterized in that: The battery management system: monitors battery status in real time, balances cell voltage, prevents overcharge / overdischarge, and provides data support; The automated testing platform includes: a charge and discharge test system and an environmental simulation device, wherein the charge and discharge test system simulates actual working conditions and records parameters such as capacity and efficiency; Environmental simulation equipment: high and low temperature chambers, salt spray chambers, etc., to test the performance of batteries under extreme conditions; the third-party testing system includes testing by professional institutions; the software diagnostic system reads battery data through the OBD interface, analyzes fault codes, and generates a health report.

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