A screening method for assembled batteries
A screening method and battery technology, applied in sorting and other directions, can solve problems such as consistency and inability to guarantee battery dynamic characteristics, and achieve the effect of improving accuracy, good consistency, and reducing pressure difference.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0025] A method for screening assembled batteries, comprising the steps of:
[0026] S1. Charge the battery with a predetermined constant current until the battery is fully charged, and record the charging termination voltage V 充 , and then discharge with a predetermined constant current until the battery is in an empty state, and record the end-of-discharge voltage V 放 , battery discharge capacity Q 1 , energy value E 1 , and measure the DC internal resistance R of the battery at 50% SOC 1 ;
[0027] S2. Charge the battery with a constant current to the end-of-charge voltage V 充 , measure its voltage V after standing for 0.5 hours 1 ;
[0028] S3. Vibrate the battery at a frequency of 10 Hz for 8 hours, then leave it at a temperature of 45°C for 5 days, and measure the voltage V of the battery 2 ;
[0029] S4. Discharge the battery at a predetermined constant current to the end-of-discharge voltage V 放 , record the discharge capacity value Q 2 , energy value E 2 , ...
Embodiment 2
[0034] A method for screening assembled batteries, comprising the steps of:
[0035] S1. Charge the battery with a predetermined constant current until the battery is fully charged, and record the charging termination voltage V 充 , and then discharge with a predetermined constant current until the battery is in an empty state, and record the end-of-discharge voltage V 放 , battery discharge capacity Q 1 , energy value E 1 , and measure the DC internal resistance R of the battery at 50% SOC 1 ;
[0036] S2. Charge the battery with a constant current to the end-of-charge voltage V 充 , measure its voltage V after standing for 3 hours 1 ;
[0037] S3. Vibrate the battery at a frequency of 55 Hz for 1 hour, then leave it at a temperature of 60°C for 1 day, and measure the voltage V of the battery 2 ;
[0038] S4. Discharge the battery at a predetermined constant current to the end-of-discharge voltage V 放 , record the discharge capacity value Q 2 , energy value E 2 , and ...
Embodiment 3
[0045] A method for screening assembled batteries, comprising the steps of:
[0046] S1. Charge the battery with a predetermined constant current until the battery is fully charged, and record the charging termination voltage V 充 , and then discharge with a predetermined constant current until the battery is in an empty state, and record the end-of-discharge voltage V放 , battery discharge capacity Q 1 , energy value E 1 , and measure the DC internal resistance R of the battery at 50% SOC 1 ;
[0047] S2. Charge the battery with a constant current to the end-of-charge voltage V 充 , measure its voltage V after standing for 2 hours 1 ;
[0048] S3. Vibrate the battery at a frequency of 20 Hz for 3 hours, then leave it at a temperature of 50°C for 2 days, and measure the voltage V of the battery 2 ;
[0049] S4. Discharge the battery at a predetermined constant current to the end-of-discharge voltage V 放 , record the discharge capacity value Q 2 , energy value E 2 , and ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com