Pengujian Baterai Charge and Discharge

Summary

This video provides an in-depth overview of the lithium-ion battery testing procedures conducted at Universitas 11 Maret using the Newware Battery Testing System. The presenter explains how various battery types, including coin cells, 18650 cylindrical cells, pouch cells, and split cells, are tested for their performance. The testing processes include formation tests, cycle tests, rate tests, and overcharge/overdischarge tests, each with specific parameters for voltage, current, and cycles. The video also covers how data is collected, analyzed, and visualized using the Newware BTS9 software, providing a comprehensive look at cutting-edge battery testing for energy storage research.

Takeaways

• 😀 The Newware Battery Testing System is used for comprehensive testing of lithium-ion batteries, including coin cells, pouch cells, cylindrical cells (e.g., 18650), and split cells.
• 😀 The system is capable of performing tests like formation, cycle, overcharge, overdischarge, fast charging, and rate tests to evaluate battery performance and safety.
• 😀 Key tools for testing include specific clamps for different battery types (e.g., coin cells, pouch cells) and the Newware battery testing system software (BTS9 client).
• 😀 The Newware Battery Testing System software allows users to set specific parameters such as voltage, current, and cycle duration for each test.
• 😀 During a formation test, batteries are charged and discharged to assess their capacity, using approaches like constant current charging and constant voltage charging.
• 😀 The cycle test involves repeating the charge/discharge process multiple times to evaluate battery life and performance over extended use.
• 😀 The overcharge test involves charging the battery beyond its nominal voltage (e.g., up to 4.5V) to assess its behavior under extreme conditions.
• 😀 The overdischarge test discharges the battery below its normal operating voltage (e.g., down to 2.0V) to evaluate its safety and performance limits.
• 😀 Fast charging tests measure a battery's ability to handle higher charging currents, which can exceed the normal charging rate (e.g., 5000mA instead of 2000mA).
• 😀 The rate test evaluates how a battery performs under different charging and discharging rates (e.g., 0.1C, 0.5C, 1C), simulating real-world usage scenarios.
• 😀 The collected data from all tests, including voltage, current, and capacity values, can be exported into an Excel file for further analysis and documentation.
• 😀 The Newware Battery Testing System provides detailed visual graphs to help users interpret battery performance data, making it easier to analyze results.

Q & A

What is the main purpose of the Newware Battery Testing System mentioned in the script?

The main purpose of the Newware Battery Testing System is to test lithium-ion batteries, including their charging, discharging, and performance through various test cycles like formation, overcharge, over-discharge, and rate testing.

What types of batteries can be tested using the Newware Battery Testing System?

The Newware Battery Testing System can test several types of lithium-ion batteries, including coin cells, 18650 cylindrical cells, pouch cells, and split cells.

How is a coin cell battery connected for testing in the Newware Battery Testing System?

A coin cell battery is connected using a special clamp, where the positive terminal is connected to the red cable and the negative terminal to the black cable.

What is the role of the 'rest' phase in the testing process?

The 'rest' phase is a period where the battery is left idle between testing steps, typically lasting 5 minutes, to allow the battery to stabilize before proceeding with the next phase of testing.

What is the significance of the voltage range (2.5V to 4.2V) mentioned in the testing process?

The voltage range of 2.5V to 4.2V represents the typical operating limits for lithium-ion batteries, where 4.2V is the upper limit for charging and 2.5V is the lower limit for discharging.

How does the testing system perform overcharge and over-discharge tests?

During an overcharge test, the voltage is set higher than the battery's nominal voltage, typically up to 4.5V or 4.7V, while in an over-discharge test, the discharge voltage is set below 2.5V, such as 2.0V.

What does 'fast charging' mean in the context of battery testing?

Fast charging refers to the process where the charging current is set higher than the battery's nominal rate, exceeding the theoretical charge capacity, to test how the battery handles rapid charging, typically without adjusting the discharge rate.

What is meant by '1C' in battery testing, and how is it used in rate testing?

'1C' refers to the current required to fully charge a battery in one hour. For example, if a battery’s capacity is 2000mAh, 1C would be 2000mA. In rate testing, different multiples or fractions of this current, such as 0.1C or 0.5C, are used to evaluate the battery's performance under varying charge/discharge rates.

How does the system handle multiple testing channels for different types of batteries?

The Newware Battery Testing System features multiple channels (up to 8 per row), each dedicated to testing different batteries. Channels can be assigned specific battery types such as coin cells, pouch cells, or cylindrical cells for simultaneous testing.

What software is used to control the Newware Battery Testing System and what functionalities does it provide?

The Newware Battery Testing System is controlled via an application called Newware BTS9 Client. The software allows users to configure and monitor battery tests, adjust settings for charging, discharging, and testing cycles, and analyze the test results through graphical data and reports.