In a press conference in Korea on Monday, Samsung announced the cause of malfunctioning Galaxy Note 7 devices and it is none other than what critics and reviewers world over had suspected — dysfunctional batteries.
Experts from UL, Exponent and TUV Rheinland conducted their own investigations into the case of Galaxy Note 7.
Three months after they pulled out their flagship Note 7 devices from stores as well as customers’ hands, it has announced faulty batteries as the cause of the fires and in order to restore trust in the brand’s name, Samsung also announced measures to avoid such failures in the future.
“For the last several months, together with independent industry expert organisations, we concluded thorough investigation to find cause to the Galaxy Note 7 incidents. Today, more than ever, we are committed to earning the trust of our customers through innovation that redefines what is possible in safety, and as a gateway to unlimited possibilities and incredible new experiences,” said DJ Koh, President of Mobile Communications Business, Samsung Electronics.
Fire in both the batteries was caused due to damage to the separator of the positive and negative electrodes within the battery, which had led both of them to meet, creating a spark and eventually fire.
While the negative electrodes in the first battery were incorrectly placed on the curve rather than on the planar area, the second battery had welding issues with the positive electrode, causing it to pierce through the insulation tape — which was also found missing in a number of batteries.
The company has also listed a number of additional safety measures such as 8-point battery safety check, multi-layer safety measures and the formation of a battery advisory group in order to avoid such incidents in the future.
To enhance the safety of its devices, Samsung is going to implement multi-layer safety measure such as adding hardware around the battery for added protection, adding safety measures going into battery design to make it more secure, and improving the software to monitor and govern battery charging duration, charging current as well as temperature while charging.
The 8-point battery safety check test includes durability test, charge and discharge test, visual test, x-ray test, durability test, disassembling test, TVOC test and OCV test.
“Samsung has developed strict quality assurance protocols across its entire development process in an effort to renew its commitment to safety,” the company stated.
The company has come out clean after internal investigations and assured that no such issues will plague its upcoming devices, in a bid to reassure potential and existing customers before the launch of Galaxy S8 this year.