中国·亚星-www.yaxin868.com|官网登录

Today, power banks have become an essential item for people on the go, but the accompanying safety incidents are also frequently making headlines. From cases of spontaneous combustion on flights to explosions in dormitories, power bank incidents have evolved from "rare occurrences" to a shared concern for regulators, the media, and consumers alike.

The mandatory national standard "Technical Specification for Safety of Mobile Power Supplies" (GB 47372-2026) is about to be released, imposing stricter requirements on battery cells and battery safety. For instance, after tests such as overcharging, nail penetration, and compression, products must not catch fire, explode, rupture, or leak electrolyte. Dubbed the "strictest regulation ever," it is set to take effect on April 1, 2027.

As a result, under this heightened regulatory scrutiny, the safety of power banks has become a key competitive differentiator for brands. Eliminating the risk of electrolyte leakage to the greatest extent has now become a critical issue that must be addressed.

1. Why Do Traditional Methods Fail to Contain the Risk of Electrolyte Leakage?

Most power bank accidents (such as swelling, fires, and explosions) stem from electrolyte leakage inside the battery cells. Traditional detection methods, however, have considerable limitations:

Unable to Detect: Minor leaks or slow, early-stage leaks are difficult to detect, allowing hidden defects to enter the market.

Inaccurate Judgment: Susceptible to environmental interference, leading to false positives or false negatives. This results in rejecting good products or passing defective ones, driving up quality costs.

Lack of Traceability: Absence of quantifiable data makes it difficult to meet requirements for quality traceability, process optimization, and compliance audits.

2. Hirays’ Customized RGA Detection Solution

Faced with the stringent requirements of the new national standard, Hirays leverages its mature and robust mass spectrometry technology to provide enterprises with a customized RGA detection solution for electrolyte leakage, meeting the industry’s demand for high-precision testing.

Detection Principle: Precise Quantification via Quadrupole Mass Spectrometry

RGA quadrupole mass spectrometry directly captures characteristic gases volatilized from electrolytes, accurately determining whether leakage has occurred and quantifying the leakage amount.

How It Works:

The ion source ionizes substances in the gas into positive ions, which are then accelerated into the quadrupole mass analyzer under an applied voltage.

Within the quadrupole, two pairs of rods apply different AC and DC voltages to form a quadrupole field. By controlling the voltage, only ions of a specific mass-to-charge ratio are allowed to pass through the quadrupole at any given moment, ultimately reaching the detector.

The detected signal intensity corresponds to the quantity of these ions, which in turn indicates the amount of the substance containing these ions.

Testing Scope: Full-Process Coverage from Cells to Finished Products

This detection solution covers electrolyte leakage testing for power banks across all stages—cell, semi-finished, and finished products—ensuring quality control from the source and guaranteeing that every product leaving the factory meets the designed quality standards.

Solution: Flexible Customization to Meet Diverse Production Needs

Core Product: HM-210 Online Mass Spectrometer

Stable performance and precise detection.

⬆ HM-210 Online Mass Spectrometer

Key Technical Highlights:

Minimum detectable leak rate: 5×10⁻⁸ Pa·m³/s

Standard leak orifice: Customizable down to 5 μm

Customized Testing Platform:

Dual-station floor-mounted fixture: This solution employs a dual-chamber design, allowing a single fixture to simultaneously test 96 products. The number of chambers, layers, and products per layer can be flexibly adjusted based on customer product dimensions and production capacity requirements to maximize testing throughput.

Testing Process:

Vacuum Volatilization: Products are placed in a vacuum chamber, evacuated to below -95 kPa, causing leaked electrolyte to rapidly volatilize into gas.

Qualitative and Quantitative Analysis via Mass Spectrometry: RGA collects the gas through a sampling system, ionizes it via the ion source, and filters it through the quadrupole mass analyzer to precisely measure the signal intensity of characteristic electrolyte ions.

Leakage Determination: Based on the electrolyte content calculated from the characteristic ion signal intensity, the system automatically determines whether the product passes or fails.

Performance Metrics:

Taking this platform as an example, the leakage detection capability can reach 120 μm, with a testing throughput of up to 3,000 units per hour. The solution also supports customization according to specific customer needs. Additionally, the platform is compatible with barcode scanners and manual loading/unloading, making it adaptable to production lines of varying scales.

Solution Advantages: Your Engine for Quality Improvement

Precise Detection

Leveraging quadrupole mass spectrometry technology, it can accurately detect multiple electrolyte components. Optimized system design and intelligent algorithms effectively mitigate interference from adhesives and other substances, enabling high-precision automated detection and eliminating false positives and false negatives.

Safe and Stable

Equipped with real-time self-diagnostic functions, it continuously monitors core parameters such as vacuum level and ion source current. Abnormal conditions automatically trigger protection mechanisms, ensuring more reliable equipment operation.

Highly Efficient and Adaptable

Utilizes a parallel strategy for mass spectrometry testing and vacuum pumping, significantly shortening testing cycles and improving equipment utilization. The floor-mounted fixture has a small footprint, and fully automated production lines can also be customized to suit different production scales. Supports multi-station testing for semi-finished and finished products, with quick changeovers via fixture swaps to reduce costs and improve efficiency.

Professionally Customized

self-developedtechnology, deeply customized for the lithium battery and power bank industries. Core components are easy to replace, resulting in lower overall usage costs.

Smart Connectivity

Standardized interfaces enable integration with MES systems, allowing automatic upload of test data to support quality traceability and process optimization.

Easy to Use

The user interface is intuitive and straightforward, enabling quick adoption even by non-specialists.

End-to-End Service

Comprehensive support from solution design and commissioning to operator training, covering pre-sales, in-sales, and after-sales phases to ensure worry-free usage.

New National Standard Era: Safety Is the Core Competitiveness

The new national standard and the 3C traceability system will compel enterprises to shift from "competing on price" to "competing on safety and quality." Hirays’ RGA electrolyte mass spectrometry detection solution and the HM series online mass spectrometers have already been deployed in batch applications by several leading power bank, consumer electronics, and lithium battery manufacturers. These solutions have effectively enhanced product safety and reliability, helping companies gain a competitive edge in the fierce market.

If your enterprise is also facing challenges in detecting electrolyte leakage in power banks, feel free to contact us via phone or message. We offer complimentary sample trials and on-site process evaluations, and can tailor a customized leak detection solution based on your production line and product characteristics.