The Chroma 17010H Battery Reliability Test System is high-precision charge and discharge test equipment specifically designed for high current/high power performance testing. This system is suitable for performance evaluation, life cycle testing and product selection of large Lithium-ion Battery Cells (LIB Cells), Electric Double Layer Capacitors (EDLCs) and Lithium-ion Capacitors (LICs).
The 17010H's energy recovery circuit architecture offers a marked improvement over traditional switching power supply equipment. It features high measurement accuracy and precision, high-speed current response, zero-crossover time for charge/discharge conversion, as well as multiple current ranges. These characteristics enhance the accuracy of battery cell capacity tests, improve performance parameter validation, and facilitate realistic dynamic current and power testing. In addition, Chroma 17010H features a powerful 30-second 200% pulse current output function. For instance, a unit with a single-channel continuous current of 300A can produce a 30-second 600A pulse current. This provides a highly cost-effective and space-saving solution for applications such as power capability and DC internal resistance testing, which require short but high-rate test currents.
High-current life cycle tests highlight the importance of testing the equipment's energy conversion efficiency. Benefits include not only reduced power demand, but also a large decrease in heat production. The control circuit operates at a relatively low temperature, effectively suppressing thermal drift and extending components' life cycles. In this way, the 17010H achieves accurate and stable test performance. Compared with linear circuit products, it offers more efficient energy conversion and higher power density, reduces power distribution requirements for laboratories, saves operating power and air conditioning costs, and improves space utilization.
Designed with the diversity of battery cell products and experiments in mind, Chroma 17010H features a channel parallel function with a continuous current up to 2400A and a pulse current up to 4800A. The performance of paralleled channels remains unchanged, with the exact same precision specifications and no response delay, significantly enhancing the equipment's applicability.
With regards to safety, each channel is additionally equipped with Level 2 V. Protection, and an independent measurement loop prevents battery overvoltage when a single component fails, enhancing testing safety. In addition, the system's product maintenance design has been improved: the circuit units are modularized and can be individually assembled and disassembled quickly, enabling convenient maintenance and channel backup.
Accurate output capability that meets test standards
Run power capability tests and driving simulations to test compliance of vehicle batteries with international standards. Test parameters for high-rate current and power are based on battery operating conditions (such as BEV, PHEV and HEV) with an output time of 30S, which makes purchasing full-power equipment unnecessary. Chroma 17010H not only provides up to 200% rated pulse current and power output capability, but can also effectively save equipment costs and space.
Chroma 17010H feeds the electric energy released during discharge back to the AC power grid, which greatly reduces the generation of waste heat, realizes green energy manufacturing with low carbon emissions, reduces power distribution requirements, and saves operating power and air conditioning costs.
• Discharged energy is fed back to the regional power grid with a recovery rate of 75%.
• System feedback grid current's total harmonic distortion <5%.
▲ Energy Recovery Architecture
Fast current response<1.5mS / 200% pulse current output <2mS
The fast current response provides ideal experimental conditions, reduces occurrence of cumulative errors during the fast-changing dynamic test and obtains low-distortion data.
▴ Rising time (10% to 90%): <1.5mS @30A ~ 270A
Switching time (+90% to -90%): <2mS @270A ~ -270A
Load: 5 meter cable short circuit
▴ Rise time (-20% to -180%): <2mS @-60A ~ -540A
Load: 5 meter cable short circuit
Accuracy is key to comparison of different channel data
Battery products often require multi-channel experiments for comparative analysis. High accuracy ensures that the data's baseline deviation between different channels is minimal, making comparisons more objective.
High precision improves data analysis efficiency
The inside of the battery is a complex electrochemical structure, and its characteristics are changed by the current, temperature, SOC, SOH and other experimental conditions. Initial changes are subtle and easily affected by the measurement stability of the equipment. High precision ensures measurement reproducibility and reduces measurement-caused data jumps, which is very helpful for the interpretation of the testing data.
▲ Precise measurement of voltage and current
• Can perform battery cell 0V abuse test
• Suitable for EDLC testing
Automatically select suitable current range in constant current (CC) mode
Provides multiple current output and measurement ranges and is suitable for test plans covering both high current and small current.
Automatically switch suitable current ranges in constant voltage (CV) mode
Supports automatic switching of current ranges in constant voltage (CV) test mode with no output interruption during the process, improving current resolution and consistency of the cut-off judgment.
▲ DTS application test and corresponding diagram of current range
▲ Constant voltage test current switching schematic
The Chroma 17010H uses high-speed voltage and current sampling with double-integration computing to accurately capture transient changes during testing without distortion. This approach provides highly reliable capacity calculations, eliminating the significant cumulative error seen with conventional test equipment that records key data at report sampling speeds.
• Hardware internal voltage/current sampling rate: 1mS
• Report single point transient sampling rate: 1mS
• Report sampling rate: 10mS
▲ General Testers Charging/Discharging Sampling Rate
▲ Chroma 17010H Charging/Discharging Sampling Rate
Level 2 V. Protection reduces the risk of voltage measurement failure
Accidents caused by large battery cells are unpredictable. In order to strengthen the safety of the experiment, an auxiliary voltage is independently set in each channel to protect the measurement circuit, which independently memorizes the protection parameters and operates autonomously. When an abnormality occurs, the output circuit is forcibly closed immediately.
Chroma 17010H supports integration of environmental chambers of various well-known brands as well as multi-functional data loggers. With the Battery LEx software, you can set parameters and monitor data simultaneously. Test data is automatically compiled into test reports, all in all providing a fully comprehensive test solution.
Integrable data logger
• Records temperature (ºC), voltage (V), pressure (mPa), force (kg).
• Recorded real-time data can be used as judgment criterion for cut-off or temperature protection measures.
System protection and abnormality detection
• Test recipes include various built-in protections; the protection mechanism monitoring these has a response speed of 1mS when triggered. An optional external voltage/temperature meter relay can be added to provide reliable dual-layer protection.
• Real-time abnormality detection allows each individual unit to automatically detect abnormalities based on independent logic. When the system is interrupted, the test can be continued after the exception is cleared without data loss.
Chamber integration and peripheral safety engineering
• The Battery LEx software provides built-in chamber setting control and control steps for temperature, humidity, timeout, and over-temperature protections while indicating temperature control time, delay time, and standby temperature.
• To ensure consistency of the test conditions, the grouping management structure allows all testing channels in the same chamber to enter the temperature control phase at the same time.
• The built-in DI/DO function can be connected to smoke/gas detection, a fire extinguisher, and alarms for over-temperature, over-voltage, and open door. The system performs different levels of handling according to the degree of damage, including stopping the test or powering off. Alarm data can be sent remotely via e-mail.
Battery Lab Expert (Battery LEx) is the testing software platform specially developed for Chroma 17010/17010H and offers:
• Group Testing: each group can control up to 96 channels and execute up to 50,000 steps.
• Variable editing: use data from the external data logger for flexible programming and complex applications.
• Chamber integration: real-time monitoring of chamber status and protection mechanisms through DI/DO expansion.
Project Browser
• Streamlined Management: Easily create and organize up to 500 test plans tailored to specific DUT types or test requirements.
• Intuitive Display and Real-time Editing: Effortlessly browse, inspect, and adjust test plans, DUT specifications, waveform simulation data, and recipe content. Modify parameters on the fly and save them instantly for maximum efficiency.
• DUT Database: establish a central repository for all your DUT specifications, allowing you to quickly map parameters during recipe editing. Use recipe sharing for efficient testing across different projects.
• Operation Simulation: import data points directly from xlsx files to simulate operating conditions. Define time intervals (both equal and custom), output multiplier, and data ranges to create highly realistic test scenarios.
▲ Waveform Simulation Database
▲ DUT Database
▲ Project Browser
Recipe Editor
• Layered Structure: craft intricate test plans with a hierarchical structure including up to 50,000 steps (SR -> MR -> TP).
• Easy Creation: design new recipes from scratch to address a wide range of test applications.
• Quick Editing: combine existing recipes to rapidly build comprehensive test plans.
• Special Settings: utilize special settings for C-rate, OCV-SOC, Q%, ±V, and variables to create highly customized recipes.
• Variable Settings and Cutoff Conditions: define up to 20 variables, including 2 variables that can be leveraged across sub-recipes. The 1-100mS transient capture function meticulously records transient changes at the start or end of each step, then defines them as variables for secondary calculation.
▲ Sub-Recipe
▲ Main Recipe
▲ Test Plan Editor
▲ Variable Definition and Transient Capture
Recipe Executor
• Multi-channel group management.
• Multi-group start.
• Various Control Options: start, pause, resume, stop, scheduled pause, specified start, skip to next step, pause and skip to next step, recipe preview.
• Real-time Test Status: real-time display of test data for individual channels and entire group.
• Supports dynamic paralleling.
▲ Recipe Executor
Real-time Chart Display
• Real-time Data Plotting: plots data in real-time based on the set sampling time, with up to 36,000 data points displayed on a single screen.
• Multi-chart Monitoring: view up to 4 independent graphs simultaneously, allowing for comparison of up to 2 test channels per graph.
• Graph Capture: use the time freeze function to capture and save test curves.
• Multi-axis Analysis: provides dual-Y-axis data display for more comprehensive analysis.
▲ Real-time Chart Display
Test Report
• Automatic Export: automatically exports to user-specified path based on defined export mode and filename.
• Export Modes: choose between manual export or automatic export based on either sub-recipes or time settings.
• Adjustable data precision up to 9 decimal places.
• Report Types: channel-level report, step-level report.
• Customization: Freely adjust report items and column orders to tailor the report to your needs.
▲ Test Report Preview
Chamber Control and System DI/DO Signal Control
• Three Control Modes: chamber control steps, real-time remote control, maintenance mode.
• Delay Function: set a rest time after reaching the set temperature to ensure consistency between the temperatures of the chamber and the DUTs.
• Cycle Temperature Setting: paired with a data logger, the system can adjust the chamber temperature based on the actual DUT temperature to accurately ensure temperature consistency.
• End-of-test Setting Modes: end temperature control, adjust to the specified temperature, or maintain temperature.
• Dual Protection Control: over-temperature protection, temperature control timeout protection.
• External Device Control: provides three-color light signal control and relay signal control.
• Synchronized Temperature Control: automatic sync. mechanism ensures that the chamber temperature control starts only when all channels reach the "temperature control step", ensuring test consistency.
• Temperature Control Inheritance: automatically transfer chamber control to another group upon completion of the main group's test.
▲ Chamber Control Settings
Management
• Account and Permission Management: establish multiple user accounts with passwords and assign corresponding editing permissions.
• Alert Notifications: set up email alerts for warning messages.
• Recipe Transfer: import/export/move recipes and test plans.
• Data Management: administrators can set up automatic or manual deletion of system data.
• Forced Global Protection: set mandatory protection items for recipes to prevent human error and enhance test safety.
▲ Test Plan Import/Export
Battery Cell Test System Auto Calibrator
Chroma A170108 is a complete automated calibration and verification unit with a variety of high-precision calibration standard components built-in for programmable test tasks. Chroma A170103 applies to Chroma 17010H products up to 600A in order to ensure that the equipment maintains its high precision and traceability.
• Consistent Standards Verification: minimizes human errors and variation in test results.
• Efficient Calibration and Verification: cuts down labor costs.
• Automated Report Generation: convenient management of maintenance records and traceability.
Battery Cell Testing Data Logger
The Chroma A172013 multi-channel voltage and A172014 multi-channel temperature data loggers can serve as auxiliary channels for the 17010H system, providing real-time temperature and voltage monitoring of the DUT during charge and discharge tests. Through the Battery LEx software, the data can be integrated into the test report and upper and lower limit protection can be set to ensure test safety.
• Each channel adopts independent 24-bit ADC sampling.
• Equipped with cold junction compensation function.
• Can be used as a standalone unit or connected to voltage or temperature modules, expandable up to 128 channels.
Note*1: A172013 and A172014 modules can be integrated and used simultaneously.
*Note*2: The accuracy specification does not include errors caused by the testing cables, under the condition of 100ms sampling and 23±5℃.
Note*3: The sampling time is for the single unit specification and does not include data integration and transmission.
Operating Environment Specifications and Cabinet Dimensions
