Four Fallacies of Lithium Battery Explosion

In May this year, a 7 years old girl name Aitzhan kazakhstan was playing in the yard GalaxyS2 wounded in the pocket.The Fried is, of courseThe lithium battery, a hospital checking results show little girl leg burns hit in her leg, and even the need for skin grafts - it's just one of a large number of cell breaking news.The efficiency of the lithium battery is to fry over global fast developing.Whenever a cell phone can be considered a bomb.So the existence of the mobile phone as a weapon is more than bricks so simple, is the good helper of kill.

Battery weapons of the labor of duty, of course, or the power supply for mobile devices.Originally with the passage of time, it also live in a little attenuation.Preventing abnormal death of battery weapons and the unexpected blow itself up as we need to study, the focus of the controlled weapon is good, after all.

Myth 1: electricity dead batteries and chargers to explosion?

With don't know the charger for mobile phone battery of the route, or just use fake batteries can reach the effect of explosion.Not only that, with parameters does not match on the charger, also can cause the same effect, the key is the "output voltage parameters" marked on the charger.

Mobile phone tablet output voltage of the charger are 5 v.Usually as long as the parameter is unified, even if the number is different, such as the output current to charge it with electricity are generally there is no problem.

12 w (see apple charger output voltage 5.2 V, apple says rechargeable all iOS devices, but we really don't suggest you use it to charge the iPhone even iPadmini)

If you want an explosion scene, can choose the output voltage charger for mobile phone.But there are some exceptions, such as the charger output voltage 5.1 V, apple's official claim to recharge the iPhone is no problem, it may be higher than 0.1 V is not a problem, and apple charger has its own security solutions.In addition, fake charger inside even do bad, at least on voltage stability for battery explosion just minutes, immediately can try.

Seriously, though, in nowadays the development of lithium battery technology, and vendor for battery added layers of security features, not only for control of the battery power management chip has been quite perfect, some cells and cell phone are in danger of cut off the design itself.Not fake batteries and chargers have been difficult to explosion, what to say when charging the phone can cause cell phone explosion is a snoop out of context lies.

Myth 2: no electricity recharging can prolong the service life of the battery?

For most of the friendLithium ion batteriesIs not as former nickel chrome nickel-metal hydride batteries do exist memory effect should be slightly to hear.So the lithium battery guidelines is: nothing is charged, don't wait for no electricity charge again, don't try to full of peace of mind.Don't overcharge discharge is basic principle of the lithium battery.

Most of 70, 80 after the older people to modern people left such a truth: because with cumulative charge cycle, maximum capacity is the battery life in attenuation, so cherish the charge cycle, when you use the battery fast charge their phone again, and once, it is advisable to charge, this guarantees that maximize battery life.Even mobile phones, tablet and laptop specifications said charging for the first time to "activate" battery, charging time should be xx hours.

(overcharge can also lead to electrolyte materials such as cracking gas, pressure valve drum rupture with battery shell bulge, if lithium ions and oxygen react, explosion is just around the corner)

Nickel battery period of cancer is a tenacious vitality, kill so many of the older generation of revolutionaries and the instruction.But the battery cycle life is largely determined by the charge cycle - the number increase, charging the battery life on the wear and tear.They understand the meaning of "charge cycle" wrong.With such as electricity consumption from 90% to 40%, we will for the battery charger to 90% - and that's not a cycle, because only put 50% of the electricity charge, if again this process a charge cycle is complete.So the lithium battery charging are supposed to be follow one's inclinations of The Times.

This means that the battery is low just charge and should be charged to 100% every time is a sad tone.Lithium battery charging process is as follows: lithium ion from the positive emerge embedded negative layer structure, if excessive charging, lithium ion may be embedded in too deep, card inside, and you won't come this part of the lithium ion also cannot use, battery capacity thereby reducing;If excessive discharge, lithium ion from the cathode out too much, can cause negative electrode layer structure collapse, the electrode structure is damaged, battery capacity and reduce (common on the market todayLithium polymer battery, as a selling point out that millet, but lithiumPolymer batteryAnd ordinary lithium ion batteries, the main difference is the material of the electrolyte process is still charging and discharging lithium ion migration in positive and negative electrode, so the essence of the lithium polymer battery and lithium ion battery).

Don't wait for battery charging and visible don't fill too full is the good habits of lithium-ion batteries.Some manufacturers may suggest users every once in a while on a full charge and discharge, the purpose is mobile power shows the accuracy of calibration, and extend battery life but had nothing to do.

Myth 3: a software can extend battery life?

Battery management software is a magical thing, it seems that a quick charge, supplement of charging and trickle charge so high atmosphere, according to the grade of the noun only by the system to provide the API to read the actual power displayed to the user, unhelpful for charging and can help the power resides in the background, the absolute is a model of lithium battery era type product.

Have to say the battery management application shows that the charging process does have its truth, but the charging process is entirely in the hands of the power management chip, the "management" is the half pipe.The only thing certain is that some battery management software can take the initiative to reduce the frequency of the processor, after the system root or closing some unnecessary background processes and services in order to save electricity.

Myth 4: use tablet charger for mobile phone will be dangerous?????

The microblog is rumoured to use tablet charger for mobile phone is not possible, because the larger output current may breakdown capacitance.But there are countless daredevil friend in use tablet charger for mobile phone, seems to be no big problem because it is over, and sometimes also seems faster charging.

Here we still take the lead in guidelines are given, with large output current of the charger for mobile phone is feasible, is usually not what disastrous consequences, and a lot of time can really make charging faster;But if the classmate of everyone is not too urgent to leave in a hurry to fast charging the mobile phone no electricity, ordinary or do not use this kind of large output current of the charger for a long time.

(tall OPPOFind7 charger on the maximum output current is 4.5 A whopping)

Mobile phone charging efficiency is usually determined by the size of charging voltage and current.In the output voltage of the charger to knife difficulty is big, so quick charge are generally choose larger maximum output current.Such as flash charging the charger OPPOFind7 maximum output current up to 4.5 A level, it in the mobile phone tablet and laptop is very rare.Also need to pay the price but increase charging current, supporting Find7 charger special 7 needle mouth, and 8 pins battery contact, and there are multiple charging security protection, these will inevitably increase the design of the charger and battery manufacturing cost, thus, it is not everyone can use on the 4.5 A charger.

In the charging lithium ion migration can be likened to a export and the entrance to the highway, to make quick in all cars, should not only consider the width of the road, also have to consider entry export ability of bearing and scheduling, and also to prevent accidents.Charging current ascension also like let all car sped.

Most of the mobile charger output current is usually in 1 A ~ 1.5 A level, and the output of the tablet charger current many are up to 2 A or higher.This explains why sometimes tablet charger for mobile phone, speed can be faster.So why not just let the phone charger also deserves to go up the maximum output current of 2 a?

Actually has been on the market use 2 a maximum output current mobile phone chargers, such as release soon huawei honor 6, so huawei claimed glory 6 charging 30% faster than similar mobile phone.But if there is no such a good the charging highway infrastructure, if use 2 a maximum output current charger for mobile phone battery rated current 1 a, if the power management chip for charging current do not limit, the low battery charger do with 2 a current for the battery, then reduce gradually until full of current, so charging speed is faster, but the batteries will be more obvious, the high temperature is the foe of battery life, and if so for a long time charging, the battery life will be affected by relatively large.

Some mobile power management chip for charging current limiting, like the road in the export of capacity limit painstakingly, even if the entrance and highway has high traffic efficiency, also had to accommodate exports slow.Such as mobile phone limit the charging current 1 a, then even with 2 a charger for mobile phone will not have any influence.Of course does not rule out some manufacturers in order to save the cost control the charger of the maximum output current, because anyway, charging speed is also acceptable.

This also explains the computer with USB interface for charging the mobile phone more slowly, using a computer USB port or mobile charger recharge tablet is almost don't go in, because the computer USB port provides the maximum current of 500 ma.

Conclusion: the fallacy is not credible honest valuable life

Finally it is worth mentioning that the temperature influence on the battery life is very big, actually this form below show the different temperature under different power, storage battery's impact on battery life.If you have the battery don't have to for a long time, and also hope it can come in handy later, according to the mentioned above to place it in the full state of electricity nor no electricity, and cold storage is the best way to store.

According to the above guidelines, do not listen to rumors, cherish life, use your mobile device and the battery at least can let lithium battery in a flat die, even for lithium battery life longer than stated on the manual.If you want to lithium batteries used as burst weapons, perennial with fake charger and data cables’ life will chose, Which can not only hurt the innocent, the next news is likely to be you.

The page contains the contents of the machine translation.