After sitting with the third brother for a while, Zhou Fangyuan got up and walked into the house.

Andy's team was busy with workers, and for his arrival, that is, Andy said hello to him, and the others didn't even have time to say hello.

At present, the work of this team is very intense, and the development of Android is the first priority, which is the direction of development that Zhou Fangyuan said at the beginning and resolutely and unwaveringly. Most of the members of Andy's team are in the Android development team, including some newcomers who were recruited later, and most of them were thrown into this group. The number of people in the Android development team is sufficient, and with some constructive suggestions provided by Zhou Fangyuan, the development progress of the Android system is very impressive, and now the first version of the development results has been produced.

Zhou Fangyuan under the leadership of Andy,Came to a huge touch screen,On it is a mobile phone desktop that has been enlarged a lot,Of course,Different from the exquisite and beautiful picture in the future,Today's control screen is still very simple,The graphics are relatively rough,But this is not a big problem,The resolution and aesthetics will be readjusted in the later stage,The most important thing at present,Or test the stability and security of the system。

As long as these two points can be guaranteed, other problems will not be troublesome.

Zhou Fangyuan simply controlled it a few times, and it felt quite good. The functions that a smartphone should have are all available, and many functions will only be available after multiple versions of the system, and now they have been figured out in advance. Of course, it is a very simplified version, but this change is enough to prove that technically, it is not difficult to achieve a replica of a smartphone, and the difficulty lies in creativity. From one to ten thousand, it is always easier than going from zero to one, and from nothing to something is always the hardest. Because you don't have ready-made examples to refer to, everything needs to be imagined by yourself, and then tried, after countless attempts and modifications, there will be a complete product.

The greatest significance of Zhou Fangyuan's existence is to avoid the initial confusion and countless revisions, he directly proposed a relatively mature plan, and developed according to this plan, and the progress was naturally many times faster than the original.

"So, can you try making a smartphone?"

After Zhou Fangyuan tried it, he felt that there was no problem, but he still asked Andy a few more words, after all, the other party was more professional than him, and it was in all aspects.

On the contrary, Andy's feedback to him was not good.

"There are two issues that cannot be solved right now. ”

Andy said.

Say. ”

Zhou Fangyuan looked at each other.

"First of all, the problem of mobile phone battery, we have tested it, with the current capacity of mobile phone battery, if you put it on a smartphone, a fully charged battery may not last long. ”

Andy replied honestly that he knew what Zhou Fangyuan's purpose was, so he had conducted various tests when developing the system, and after the system development was completed, he tested it very intuitively.

The result is not rosy, because with the current battery on the market, the battery is completely insufficient for smartphones.

In fact, in the original time and space, mobile phone battery has always been an important factor restricting the performance of mobile phones, and it is not an exaggeration to say that it has seriously dragged its feet.

The first mobile phone was born in 1973 in the United States, and the mobile phone was invented by Motorola engineer Martin Cooper. It is called the Motorola Dynatac 8000X and weighs about 1.81 pounds. If this weight is put in the future, then the battery life must not worry, after all, the battery of the smartphone in the future generations accounts for a large part of the weight of the mobile phone, so light and compact, the battery life can be guaranteed, if it is a big guy of nearly two catties, I am afraid that it will be no problem to use it for a week. But in fact, the talk time of this mobile phone was only more than 20 minutes, in addition to the limitations of the circuit board technology at that time, the battery at that time was also the reason why it did not last long.

Motorola Dynatac 8000X uses 6 cylindrical nickel-cadmium batteries, forming a set of battery packs with an output voltage of 7.5V, not to mention that it will take nearly 10 hours to fully charge, not to mention the more distant future, let's say that the era of 02 years, users are afraid that they can't bear it.

But during that time, all that was circulating on the market was this kind of battery, and there was simply no other option. And this kind of battery not only has a low battery capacity, but also has a short lifespan. After all, nickel-cadmium batteries still had this fatal shortcoming at that time, that is, the memory effect, every charge must be full, and each time you use it, you must wait until it is exhausted before it can be used again, otherwise the capacity of the battery will be greatly reduced, plus the cadmium element itself is toxic, so new battery technology is urgently needed to replace it at that time.

However, this problem did not bother scientists, and in 1989 mobile phone batteries were upgraded.

The advent of nickel-metal hydride batteries made many people excited at the time, because the cost of this battery technology did not increase much compared to nickel-chromium batteries, but the capacity of the battery has increased significantly. Moreover, compared to nickel-cadmium batteries, nickel-metal hydride batteries are lighter, thinner, non-toxic and have a higher energy density, and the memory effect of the battery is also much weakened, which was a huge leap forward at the time. However, this type of battery still has the same disadvantage as nickel-cadmium batteries, that is, it is easy to generate heat and is volatile.

The lithium-ion battery born in 1992 was finally put into commercial use after years of research and development by Sony, but limited to the manufacturing cost at that time, the high cost made mobile phone manufacturers prohibitive, until the end of the 90s, the double innovation of materials and manufacturing technology, the cost dropped sharply before the favor of mobile phone manufacturers.

However, most of the mobile phones at that time were still black and white screens, so the power consumption was not very high, often a lithium battery can have a standby battery life of 3 to 4 days, in this regard, Nokia is the leader. And this is also the peak era of removable batteries, basically the battery in every mobile phone can be removed and charged. At that time, people often carried not a power bank, but a second battery, and a small charger with a clip-on type. Until the innovation of mobile phone screens, black and white became color, and the birth of color screens led to a certain degree of decline in mobile phone battery life.

The battery life of mobile phones has once again become a problem for people to think about, and many battery manufacturers have invested in research to solve this problem, but in the end they have been in vain. So what can I do when things get to this point? I can only start with the size of the phone battery. But fortunately, by this time, mobile phones no longer have the huge body of the first mobile phone. The loss of battery transportation in the mobile phone has also become smaller, anyway, it is just a few more batteries.

It wasn't until the original time and space 07 that Apple's mobile phone appeared, and the different general body layout made the battery life of the mobile phone finally have been slightly improved again. But it's only a small margin, the size of the mobile phone is so big, and the big guy of several pounds is no longer suitable for reappearing, but the new battery technology is far away, the so-called graphene, that's just an idea, anyway, before Zhou Fangyuan was reborn, he hadn't heard that graphene could really become a technology that could be used for civilian use. Therefore, what mobile phone manufacturers can do is to use the non-rectangular space to install batteries as much as possible, or to improve the charging method, speed up the charging speed, and reduce the problems that may be encountered in the battery life of the mobile phone as much as possible.

Fast charging of mobile phones has been realized, but in this way, the battery life of mobile phones will begin to decrease, but this is no way, in the increasingly tense future of life, fast charging seems to have become a necessary element of mobile phones, or the use of power banks, in short, the battery problem has always been a problem that cannot be solved. Fortunately, since there is an apple pearl in front of him, Zhou Fangyuan's side is not impossible to solve.

It's nothing more than improving the layout of the body, compressing the space as much as possible, and putting in more batteries.

The consequence of this is that you have to cut back on keyboard space like Apple did, but isn't that the general trend of the future of smartphones?

But then the disassembly of the battery becomes a problem.

Zhou Fangyuan also heard people complain before he was reborn, why was he able to disassemble the battery before, but then he couldn't?

Of course, there are benefits to disassembling the battery, and there is a point that impresses Zhou Fangyuan very deeply, for example, when his mobile phone is out of power, if he is lucky enough to meet a person who uses a mobile phone with the same type of battery, he can also replace other people's batteries on his own mobile phone to continue his life;

So for a long time, "changing the battery" of the mobile phone is a very comfortable thing.

Needless to say, even if the system encounters a jam, most people's operations are to lift the back cover, remove the battery, blow and blow the fake look, and then reinstall it back to boot.

Just like in the past, Xiaobawang blew the game card slot when he couldn't read the game, and slammed the snowflake screen on the TV when it appeared, people are always willing to believe in the lucky bonus brought by this kind of metaphysical operation. Although a sudden power outage may damage the internal electrical board, it is like a one-and-done solution to pull out the battery of the phone compared to investigating the multiple possible causes behind it, which not only saves time and effort, but also makes it easier to achieve results.

However, this situation has gradually disappeared with the emergence of integrated batteries and non-removable batteries.

In the final analysis, there is nothing wrong with this situation, mobile phone manufacturers naturally want to provide their users with a better experience, and compress the space as much as possible, which can bring longer battery life. But once all the space is used, then the shape of the mobile phone battery must be special-shaped, similar to the previous square battery, there is no doubt that it is a waste of space. If you still leave the back cover of the mobile phone to the customer to disassemble by himself, it will not protect the battery inside, not to mention, it will not be of practical significance. It is better to seal it directly, so that the battery life of the mobile phone can be further improved.

In addition to the problem of battery life of the mobile phone, there is another problem, that is, the cliché structural problem.

Although the benefits of a removable battery can come at your fingertips, from the perspective of integration, waterproof and dustproof integration, reserving a battery compartment for the battery is the same as reserving a 3.5mm interface and SIM card slot, you have to make a special space, but this old structure will also lead to an increase in the number of redundant parts inside the phone, which is undoubtedly the primary consideration for smartphones with every inch of land.

Also, it has a little to do with the battery itself. In the era of black and white screens and early color screens, users used batteries with aluminum or steel shells that were strong enough, but in order to meet the needs of larger capacities, most mobile phones in the future prefer to use lithium polymer soft batteries, which are only wrapped in a thin layer of aluminum film on the outside, which is naturally easier to scratch than the previous hard shells. For the purpose of protecting the battery, mobile phone manufacturers will naturally seal the phone.

The last reason may have to do with the evolution of the shell material. Comparing the future generations of Samsung's mobile phones, it is not difficult to find that although some of them use the design of the metal middle frame, as long as the battery can be replaced, the plastic back cover is basically used. Including most of the mobile phones that can remove the back cover in the past, they are also made of plastic materials that can be easily bent. But in the future, with more and more mobile phones with metal shells, this kind of plastic shell will inevitably be eliminated, after all, no one wants to spend thousands of dollars to buy a mobile phone, and finally a plastic case.

Some people may still ask, can't the metal case be detachable?

In fact, it is possible, and there are several mobile phones in later generations with similar designs.

But the design that can remove the back cover can't last too long after all. For the pursuit of integrated mobile phones, if you can't control the quality control, the connection between the mobile phone body and the module will have uneven defects, if you compare it with those products without gaps, the gap in technology will be more obvious, which is not allowed for products that pursue aesthetics.

Eventually, the back cover also went down the same path as the removable battery. Since disassembling the back cover will be reminiscent of removing the battery, and it will make the phone more ugly, it is better to close it and cover it. If the remaining space can remove the plastic shell, and a few more components can be stuffed, and whether the back cover can be removed, what does it matter?

So the problem of the battery, Zhou Fangyuan has no better way to solve it, mainly because there was no good solution in the era when he was reborn, and he can really put forward constructive suggestions like those masters? However, even if it is according to the method, it is the crystallization of the wisdom of many structural engineers, and he is now saying it so easily, but Andy is greatly surprised. Xin said that his boss was really a genius, why didn't he think of this method?

"If that's the case, then the battery is fine, and it's time to talk about the screen. ”

After solving the first problem, Andy asked the second question.

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