Power to the People: Protecting Batteries in Electronics
Most of the electronic devices we interact with today are able to function because of chemical energy that is converted into electricity. You know, a battery. Whether that little receptacle sits behind a solid state casing or is accessible via a compartment door, the importance of batteries is intrinsically connected to the functionality of most of today’s handheld and mobile devices.
As part of HZO’s ongoing commitment to improve the way electronics are protected from water, vapor, corrosion and other environmental factors, we can say without a doubt that batteries matter when it comes to making sure electronics are truly waterproof, water protected or water resistant.
Testing performed at HZO laboratories has repeatedly indicated that a common reason for failure in a device after being exposed to water is because of shorting or corrosion that occurs directly at the Li-ion battery.
Noting this as a regular failure point of course prompted HZO technologists to conduct more in-depth testing to measure the impact of our own material application process on batteries. We wanted to ensure that our own thin-film coating process was doing its job to prevent such failures, and that the batteries themselves were safe during and after exposure to the vacuum chamber of HZO CVD equipment.
Directly, HZO wanted to answer the following questions:
– Does the vacuum chamber of our deposition equipment affect battery behavior/performance
– Does HZO thin-film material affect battery behavior/performance
– Is an HZO coated battery submersible
To prove that our process and coating did not have adverse effect on battery performance HZO developed a series of testing conditions that observed the following: pouch cell leakage test, capacity test, environmental test and life cycle test.
These performance tests were conducted on a group of Lithium-poly pouch cell batteries over the course of many months, and done in scenarios that went well beyond the regular HZO coating process.
Although the detailed results of our testing is only disclosed to partners who have signed an NDA, the results of this test cycle were clear. The Li-poly pouch cell batteries used in the tests showed a very good tolerance to vacuum exposure during the HZO thin-film coating process, performance of the material endures and consequently batteries can become waterproof as we regularly showcase in test devices that have had hundreds of hours of submersion in water.
HZO invests heavily in understanding the failure points of all kinds of electronic devices, and we know that batteries can certainly be a source of failure after exposure to liquids. By performing these kinds of testing models with certified third-party labs, as well as through our own in-house lab, the technical team at HZO is able to better understand the things that cause electronics to fail, and develop powerful protection solutions using our processes and technology.
Contact us today to learn more about the in-depth research we conduct and how that translates into protection for electronics like yours.
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