【关注川源科技HiCY】
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服务热线 400-700-2017
服务热线 400-700-2017
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We are committed to solving the pain points of lack of standardized equipment, large manual errors and insufficient temperature control in battery gas pressure monitoring, and achieving real-time and accurate measurement of internal gas pressure changes in the battery cell.
Application Areas
·Material development
·Process development
·Abuse assessment
·Cycle reliability assessment
Exclusive simultaneous multi-channel |
Ultra-wide measurement temperature range |
One-stop measurement of multiple parameters |
Unique buffer structure design |
Multiple measurement modes available |
0.2%FS high precision and high response diffused silicon pressure sensor chip |
Model | Gas production pressure measurement system | Airtightness and burst pressure testing | |
CPR100 | CPX100 | ||
Number of module channels | 8CH 16CH | ≥1CH | |
Testing Principles | Diffusion silicon gas pressure sensing detection | Detecting the gas pressure resistance or sealing performance of the sample through a gas pressure sensor | |
Pouduct Function | Gas production pressure | Airtightness, pressure resistance, burst pressure | |
Test Object | Soft pack, cylinder, square shell, etc | Soft pack, cylindrical, square shell battery cell, battery case, top cover and pack Waiting for products | |
Pressure | range | 0.1kPa~1.6MPa | 0-4MPa |
accuracy | ±0.1%F.S.或±0.2%F.S | 0.3%FS | |
resolution | 0.1kPa | ||
response time | 10ms | ||
operation temperature | -40~250°C | / | |
Communication Module | Data Storage | Internal storage of communication module and USB Store or connect to the upper computer | |
Upper computer software | ·Can switch to the curve screen of the corresponding module; ·You can input and import battery numbers, with each channel corresponding to the battery number and internal pressure one by one; ·Can set upper and lower limit alarm values for each channel, with pressure alarm function; ·Each channel can have its own sampling time set, or it can be set in batches; ·Data needs to be automatically stored; ·Having user login management permissions; ·Automatically generate internal pressure demand analysis report | ||
Charge discharge matching | Customizable Matching | / | |
The change in the volume of the battery cell can be divided into hard expansion caused by side reactions and lithium insertion in the anode and gas expansion caused by processes such as formation and abuse; therefore, monitoring the volume (pressure) of the battery cell can be used to study the development and optimization of its formation process, electrolyte formulation, abuse performance, etc.
A high-precision air pressure sensor is used to monitor the pressure of the battery cell in the gas production process in real time, and the pressure signal is transmitted to the test software through the adapter armor. The software collects pressure data at different time points (t1, t2), calculates the pressure change ∆P within the time interval, and then calculates the rate of change of pressure over time based on the formula, so as to comprehensively monitor and analyze the dynamic changes of the gas production pressure of the battery cell.
Integration The first fully integrated gas production pressure measurement equipment Industry leading companies promote products | Ultra-wide temperature range -40°C~250°C ultra-wide measurement temperature range Unique buffer structure design prevents electrolyte from contacting and corroding the sensor | Fully automatic measurement One-stop multi-channel, new measurement experience Fully automatic measurement of all parameters | Professional data processing Single point mode and linear mode are optional Measurement data is displayed online in real time |
1. Changes in the internal pressure of the battery cell during the cycle The changes in the internal pressure of the square lithium iron battery during the cycle test: as the number of cycles increases, the gas production internal pressure first decreases rapidly and then tends to be stable, which is speculated to be related to the gas dissolving in the electrolyte.  | 2. Changes in the internal pressure of the battery during the formation process The changes in the internal pressure of the square ternary battery during the formation process: the organic solvent in the electrolyte decomposes, the SEI film is formed, and the gas production increases the internal pressure of the battery. Then the electrode expands with lithium insertion, which further increases the internal pressure of the battery.  |