In product development and research, battery testing becomes a vital component. We’ll briefly examine the many different kinds of environmental chambers for battery testing to mitigate risks in analyzing batteries under different temperature conditions. The various cell types, evaluation processes, and summary of security issues when performing battery testing will be dealt with together. These are important criteria to consider how to pick the most suitable environmental chambers for battery testing. In electric vehicles, it’s vital to comprehend the way the product interacts with all other elements. We’ll clarify what security features and precautions have to be used and the reason why.
Li-ion thermal runaway is a speedy, extreme, and self-supporting response. Assessing the response is not as significant as correctly handling the by-products (gases and pressure). Improper battery testing, though, can place consumer security in danger and cost your business millions of dollars. The technology giant Galaxy Note smartphone moved through none; however, two recalls because of a battery explosion. This type of scenario could have been averted with precise, repeatable testing. That is only possible using a high-quality humidity and temperature test chamber.
Variety of Hazard Levels Included in Lithium Ion Batteries
Common problems you can face like- Undercharging, overcharging, a fracture in the dividing membrane. There’s a vast array of security dangers associated with one or more of these failures, which can be particular to the product being analyzed. There are lots of UL and IEC specifications for analyzing batteries to ensure they can endure their daily surroundings. During the charging and discharging process to fulfill the mentioned specifications we need environmental chambers for testing the batteries in high and low temperatures. Temperature, charge/discharge, and the depth of discharge may significantly impact the batteries’ cycle life.
Types of Hazard and Their Effects
- Defect Damage
No harm or danger; reversible reduction of function. Replacement or re-setting of security apparatus is enough to restore standard functionality. Replacement or repair required.
- Minor Leakage
Proof of cell regeneration or venting using RESS weight loss < 50 percent of electrolyte weight reduction.
- Big Leakage
Proof of mobile leakage or venting using RESS weight reduction > 50 percent of electrolyte weight reduction.
- Rupture
Reduction of mechanical integrity of this RESS container, leading to a discharge of contents. The kinetic power of the discharged substance isn’t enough to cause physical harm outside to the RESS.
- Explosion
Very speedy discharge of energy is enough to induce pressure waves or projectiles that might result in significant structural and bodily harm, based on how big the RESS.
Want Battery Safety? Choose Right Environmental Chambers for Battery Testing
The Choice of the proper environmental test chamber is a significant choice for test engineers whatever the application. But once the product being analyzed is a submersible battery, there’s a lot of information to think about. Significant considerations ought to be based on the degree of security needed for the end user’s program and the essential and accessible utilities. The most frequent concern entailed with environmental testing is the discharge of flammable gases to the test environment if a thermal runaway happens. In the majority of cases, this launch occurs at enormous pressures for short durations of time (usually 5 to 10 minutes per cell). These gases’ particular attributes should be assessed when producers design-related safeties for the test chamber.
The lithium ion battery testing requirement is far more crucial to decrease automobile emissions and induce electric hybrids. Our demonstrated experience provides the lowest priced solutions. Each testing chamber is constructed based on specific evaluation requirements. Anyone can quickly interface with battery cyclers, tracking & management data acquisition systems, and other test equipment to get a whole integrated evaluation choice.
Build Quality and Performance
Given the number of factors that impact environmental tests, the materials used to build temperature, and humidity chambers will need to maximize functionality and stay durable.
Top-of-the-line test chambers possess these physical layout characteristics:
- Non-conducting fittings which connect batteries to wires leading to a battery cycler for precise, powerful cost and release outcomes
- Welded, type 304 stainless steel inside to comprise compound gasoline and liquid spills and mitigate fire dangers
- Highly-efficient, non-volatility variable, thermal insulating material for a steady temperature environment in the workspace
- Heavy-gauge steel exterior which protects multiple electrical and mechanical systems from laboratory and production line components
Hardware & Software Collaboration
The times of standing alongside your test room and monitoring progress are long gone. Start looking for instrumentation that lets you operate and monitor your apparatus under test through a secure remote connection.
Blend hardware and applications, DGBell is standard on all humidity and temperature test chambers, and it may also be retrofitted to many existing evaluation chambers irrespective of the producer. This technology has revolutionized the practice of building evaluation profiles and created safe remote monitoring and operation potential — a requirement in today’s contemporary work environment. With all the hardware and software installed and batteries located, you can command evaluations from anyplace through your group’s laptops, tablet computers, and computers. A good environmental chamber for battery testing possessed these following qualities:
- Run and monitor the evaluation room
- Able to create multiple testing templates
- Storage acquired by each template is linked with a server. You can control the test chamber remotely.
- View current and historical data (even as a test is operating )
- Multiple permission can be granted to access resources of the test chamber by you with your team members
How to Reduce Risks Incorporated in Environmental Chambers While Testing Battery?
Bearing safety in mind, the most frequent safety feature integrated into environmental chambers to test batteries is temperature-restricted sheath heaters. The objective of sheathed heaters would be to control the surface temperature of the heater. It will enable the room to satisfy the desired air temperature and keep beneath the auto-ignition stage of any harmful gases which might have been discharged but not sparked into the fire. Along with thermal restricted sheath heaters, steps should be required to mitigate the danger of spark resources in the room if it’s ascertained that flammable vapors may be present. These preventative steps include but aren’t limited to non sparking fan blades or mill wheels, intrinsically safe barriers on all detectors (humidity and temperature) to prevent large voltage pulses’ potential into the room through cables, along with also the elimination of any inner chamber lights.
Another issue to think about is pressure damages. When the pressure applied to release gases from the battery during the test depends on the battery’s size and design. Most environmental test chamber manufacturers for battery testing have a standard pressure relief interface that enables the room to “breathe” into account for the contraction and expansion of the atmosphere inside the conditioned ecosystem. These “standard” pressure relief vents might often not be sufficient to compensate for the strain and quantity discharged in case of a collapse. Instead of the rupture disks, which are frequently utilized to compensate for the accelerated release of stress, we have developed a custom-tailored pressure relief system for the necessary gas flow. The benefit to the method is that there isn’t any maintenance needed to”reset’ this vent into the “at rest” position.
Conclusion
Every battery or part maker must evaluate their unique risks and failure modes. If the danger is unknown, it could be beneficial to look at your “worst-case” scenario. With this info, you can then utilize a room manufacturer to ascertain your program’s appropriate safety. There’s no standard security gear or battery space, as hazards can fluctuate significantly by product design, assembly, and battery chemistry. Recall that locating a humidity and temperature chamber for battery testing ought to be a collaborative work. Consult with your research workers, engineers, and operate with a manufacturer with the knowledge to customize a solution for you. DGBell understands how vital testing is always to invention and beating competitors to market.