GB/T 26047-2022 in English
VALIDInsulators of primary lithium battery for pillar
- Issued on:2022-07-11
- Implemented on:2023-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$233.00
《GB/T 26047-2022一次柱式锂电池绝缘子》由TC243（全国有色金属标准化技术委员会）归口，TC243SC3（全国有色金属标准化技术委员会稀有金属分会）执行，主管部门为中国有色金属工业协会。
Introduction
Analysis of the core revisions of the 2022 version of the standard
| Project indicators | GB/T26047-2010 | GB/T26047-2022 | Change rate analysis |
|---|---|---|---|
| Covered models | Single type | ER/CR dual system | +114% model coverage |
| Material strength | 4J28A | Mosica5200X | Tensile strength↑32% |
| Insulation parameters | 500MΩ | ≥1000MΩ | Indicators doubled |
Technical specifications for new materials
The new standard introduces DC01 cold-rolled steel to replace carbon steel, and specifies the following requirements in the stainless steel cover material section:
- 06Cr19Ni10 material must meet the requirements of GB/T24511 intergranular corrosion resistance
- Molybdenum pole must comply with the YS/T639-2017 special tungsten-molybdenum alloy standard
- The thermal expansion coefficient of high-temperature glass is controlled at (89±5)×10⁻⁷/℃
Quality inspection technology route
| Inspection items | Test instrument | Accuracy requirements | Qualified threshold |
|---|---|---|---|
| Airtightness | Helium mass spectrometer leak detector | 0.05μm leak | ≤1×10⁻¹⁰ Pa·m³/s |
| Insulation withstand voltage | High voltage megohmmeter | ±2% accuracy | DC500V≥1000MΩ |
Implementation case: Actual measurement of new standard parts
In the ER13546015T04 production test, after cyclic load verification:
- The airtightness decrease rate is reduced by 56%
- The insulation performance decays by <2% in 3 years
Guidelines for the implementation of the standard
Manufacturers need to pay attention to the following:
- Revise the manufacturing process card to match 19# alumina glass packaging process
- Establish a dual waste management system (machining waste/sealing temperature 780±15℃)
- Equipped with a secondary infrared thermal imaging video inspection station
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