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"battery experts are skeptical that overheated pager batteries could cause such a large-scale explosion and casualties," said paul christensen, a lithium-ion battery safety expert at newcastle university. they question whether this is consistent with past battery failures. with the advancement of technology, the safety of mobile phone batteries has also become a focus of attention.
"are there any security risks in mobile phones?" the reporter asked. he called the securities affairs departments of narada and sunwoda and waited for the answer.
on the phone, narada's business includes solid-state batteries, which are used in smartphones, laptops, wearable devices and other products. the relevant person in charge of the company's securities department said that the safety factor of solid-state batteries is higher than that of liquid and semi-solid batteries. the company's related products have not yet been supplied to the outside world, and no combustion or explosion has occurred in the current experiments. xinwangda's main products include lithium-ion batteries, etc. the relevant person in charge of the securities department said that the company's related products have undergone safety tests and have not exploded under normal use.
are there any security risks in mobile phones? this has triggered a series of thoughts. some people believe that the pager explosion incident is just a side effect of technology upgrades, and the mobile phone security issue is more complicated. dai hui, a "tech veteran" who has been engaged in the communications industry for many years, said, "don't use the traditional one-way paging concept to understand the current paging technology. modern technology can easily achieve two-way digital encrypted confidential transmission, as well as complex encryption processing, plus the need for built-in text input processing and display and positioning functions."
"i guess the pager received a certain code and started self-destruction, causing the lithium battery to short-circuit and explode," dai hui told reporters. the same problem is unlikely to occur at the mobile phone level. 4g and 5g mobile phones have a lot of privacy and security strategies at the communication level, operating system level, application level, and battery management level. in addition, at the battery management level, if the phone gets hot, for example, over 80 degrees, it will be shut down.
"hardware sensors plus hardware switches can achieve a hard shutdown. this is not software logic and cannot be hacked by hackers."
with the continuous development of technology, the security of mobile phones has also attracted much attention. from a technical perspective, mobile phones already have powerful security measures.
