Looking at the mobile phone in front of you, it has a surprisingly small shape, compared to the bulky shape of the mobile phone that Motorola just launched on the market this year, similar to a big brick, its size is more acceptable, smaller than the size of a Sony Walkman Walkman, this mobile phone is a real mobile communication terminal that can be carried in your pocket!

People have long dreamed of owning a mobile phone that can be taken with them, and AT&T's Bell Labs, Motorola and other companies have invested in this technology research and development competition.

The rest of the world is also developing mobile communication technology, with the Nordic Mobile Telephony Network (NMT) opening in 1981 with a frequency of 450 MHz. It was the world's first and largest cellular telephone network across several countries at the time. Mobile phone networks in the U.S. are also getting off the ground fast, with AT&T being the largest carrier today.

With the opening of mobile networks, mobile communication terminals have begun to develop rapidly. It was also in 1982 that Nokia mobile phones were born, but the first Nokia company did not name the Nokia trademark but called Mobira, and the first NMT450 mobile phone weighed up to 10 kilograms, which was quite strong. It weighed as much as a lead-acid battery, and was actually a large battery with mobile phone functionality, and the product quickly became popular as a car phone. This weight is already very small in 82 years.

And this year's Motorola's first mobile phone is the big brother we saw in the movies of Hong Kong and Taiwan in the 90s, the brick-like volume is very cool to hold in the hand at first, but after a long time, the wrist will be sore!

Lin Qiangsheng looked at the size of this mobile phone, which is very in line with the real mobile phone size in his heart, although it is an analog signal mobile phone, but this size will definitely be very popular in the market!

He asked in surprise: "How many pounds does this mobile phone cost?" ”

"How many pounds?" Zhang Xi was surprised for a moment, and then he smiled: "Its weight is definitely the smallest of all the products on the market!" We equipped it with a new type of lithium battery, which is the cathode solution that you provided, and now this is a 2400 mAh battery capacity. It has 5 hours of talk time and more than 140 hours of standby time! ”

"How much does it weigh, do you estimate?" Professor Zhang Xi happily asked Professor Lin Qiangsheng and Professor Lin Lanying.

Lin Qiangsheng couldn't help but reach out and pick up the black mobile phone, which was very heavy, like holding a stone. This feeling made him a little criticized, it was too blunt, but this was also the feeling that only he, who had come over, would have. I guess people in this era won't think so, and they still think it's quite fashionable!

This is a low-clamshell type machine, and its external antenna is a retractable whip antenna, and the flap has been opened to reveal the buttons. Lin Qiangsheng saw that the keys were very close and delicate, and they felt soft and slightly hard when pressed.

In the upper part of the phone is a round speaker with many small round holes in the case, and below is a long black and white LCD screen that can display incoming call information.

This phone has three functions: editing the phone list, caller ID, and call log, and these functions are now available in products on the market. The other Lin Qiangsheng did not ask the engineers to develop, he felt that the current market is solving the problem of whether there is a problem, and it has not yet reached the stage of entertainment!

Compared with Motorola's first big brother mobile phone, the one Lin Qiangsheng is holding in his hand is undoubtedly much more powerful, this device can really talk for a long time and can be carried around!

Lin Qiangsheng handed the mobile phone to Professor Lin Lanying, she was a little surprised, and then suddenly said, "This device can realize mobile communication?" It's really small, it turns out that the patch production process is used for this! ”。

Lin Qiangsheng took the phone in his hand again and repeatedly opened and closed the flip cover. said: "I guess this thing has 500 grams, 1 catty." It's a bit heavy! ”

Professor Zhang Xi shook his head greatly, he looked at this mobile phone as if he was looking at his own promising children, and said: "487 grams, almost 1 catty!" But even then our phone is half as light as Motorola's mobile phone, and it's so big that you can grasp it with one hand and operate it with one hand! ”

Lin Qiangsheng nodded. It's rare that the phone can be operated with one hand, he said: "Motorola's phone uses a nickel-cadmium battery, so it's huge and heavy!" Ours is a new lithium-ion battery, which should be much lighter! ”

Lin Qiangsheng took out Motorola's second mobile phone, which was the product appearance of 89. Although the style is very old, it is certainly much more fashionable than big bricks in this era!

Putting the phone back on the test bench, Lin Qiangsheng said to Professor Zhang Xi: "Reduce the battery capacity to 800 mAh, the standby time will not be so long, and then we can prepare for mass production!" ”

"What? Are you going to reduce the battery capacity? Professor Zhang Xi asked in disbelief.

His voice also attracted the attention of other researchers in the laboratory, especially the Chinese technicians who knew Chinese.

Lin Qiangsheng nodded heavily, and said solemnly to Professor Zhang Xi: "It is imperative to reduce the battery capacity, so that the risk is smaller!" The battery capacity of 2400 mAh is too high, this thing is too dangerous, the lithium-ion battery process is not stable, such a high-capacity battery is a big bomb! The United States is not like China, if we kill a few people, no one will buy our mobile phone, then we will lose the lawsuit and lose money! ”

Professor Zhang Xi can't refute that lithium-ion batteries are not good at this, and there is a possibility of explosion. He frowned, and seeing that Professor Lin Lanying also nodded to him, he said with some confusion: "Could it be that the lives of Americans are so precious?" ”

Lin Qiangsheng laughed and said: "Regardless of whether they are expensive or not, this kind of battery technology is in our hands, and such a small mobile phone will not be able to knock Motorola's big bricks off the altar as soon as it is listed!" ”

Motorola's Dynatac 8000x, which saw a sales boom shortly after its launch this summer, is a pure luxury item with a whopping $3,995 price, but it has quickly become a status symbol!

In terms of mobile phones, Motorola has been studying for 10 years, of course, they have come up with this kind of mobile terminal as early as 75 years, but the weight and volume of the supporting battery has always been an important constraint on mobile phones, of course, the erection of base stations has also delayed the launch of products.

At present, the mobile phone network in the United States has covered many regions, and if Dongxing's mobile phone is listed, it will definitely deal a serious blow to Motorola's mobile phone department, and Lin Johnson has seen Motorola's panicked scene.

Of course, he didn't want to keep the key equipment of mobile phones, lithium battery technology, for too long, otherwise the United States still has a very powerful anti-monopoly law waiting for him.

Lin Qiangsheng hopes to gently master this technology for a long time through authorization, so that the anti-monopoly law will not fall on his head. Previously, his computer company brands had occupied nearly 45% of the market share in the United States, and in addition to IBM, which still controlled the market share of government departments and large and medium-sized commercial organizations, his brands had no competitors in the personal and family markets and the education market.

This has already made many people dissatisfied, and some lawmakers even want to propose a sue for monopolizing the market. So Lin Johnson also stopped acquiring small and medium-sized computer brands.

Therefore, the last year and last year, the very suppressed Kangmao Tak computer company got a respite, Lin Johnson stopped the price competition of its brands, and the new products returned to the market price. Low-end keyboard products are also maintained at $150, while most of Commodore's low-end products are around $110, but there is not much profit at such a low price. Its mid-range products are held back by the Celeron series of Pentium and Dell, and there is no great sales, and its market share is gradually shrinking.

Even if Lin Qiangsheng does not take the initiative to crack down on it, the company will fall into product technology regression due to the lack of R&D funds!

Lin Qiangsheng said to Professor Zhang Xi: "Professor Zhang, the products launched by our company should be gradual, better and better from generation to generation, and the products must be sustainable!" ”

He smiled and said to Professor Zhang Xi: "You came up with such a good product at once, and the talk time standby time is so long, it is so much more powerful than the products on the market!" This is to block other people's paths! We still have to take care of local American companies on American soil, Motorola is not a small company, if you really beat it to death with a stick, the US government will stop doing it first, believe it or not? ”

When Professor Zhang Xi heard Lin Qiangsheng's explanation, his brows stretched, he nodded and said with a smile: "Alas! I can't believe you've thought so far ahead, okay, reduce the battery capacity as you say! ”

Lin Qiangsheng nodded and said: "Not only to bring it down, but also to increase scientific research investment in lithium battery technology for deeper development!" ”

Lin Qiangsheng picked up the mobile phone and weighed it twice, and said: "The lithium battery we use now is packaged in a steel shell, which is very heavy, and to be honest, it is not as good as I expected, I call it a generation of technology." The next step is to implement an aluminum case package, which makes the battery case lighter and thinner, so that the phone can also reduce a lot of mass, which is the second generation of technology. The third generation technology is to realize aluminum composite film encapsulation, which can be made very thin, and the space for reactive materials can be installed inside is also the largest! Aluminum composite film is much lighter than steel shell, is the best lithium battery shell, it can stretch, can effectively slow down the air pressure generated by battery adverse reactions, can greatly avoid the possibility of explosion, is the third generation of lithium battery products! ”

Lin Qiangsheng said all this, just to let Professor Zhang Xi have a clear product technology concept, generation after generation of step-by-step research and development, and tell him all these at once, saving him from wasting time by groping on his own!

Lin Qiangsheng looked at Professor Zhang Xi, who was a little shocked, and Professor Lin Lanying, who was interested, and said: "Our goal in researching lithium batteries is to have the highest capacity, the lightest weight, and the best safety!" (To be continued......)