New aluminum air battery comes light weight 5/6 volume reduction 1/2

Recently, Science published a paper on the battery. If the lithium battery is fully charged, the battery will lose 5% if it is not used for one month. If it is an aluminum air battery, it may lose 80% due to corrosion of aluminum. However, the researchers developed a new type of aluminum air battery, which lost only 0.02% a month, and the progress was quite obvious. In short, the new battery is five-fifths lighter and half smaller than a conventional battery.

Between the negative electrode of the battery and the positive electrode, there is generally a liquid electrolyte. When the ions move from the positive electrode to the negative electrode, the electrolyte collects electrons to form an electric current. In an aluminum air battery, the positive electrode is aluminum and the negative electrode is air. Because the air can be extracted from the environment, the aluminum resources are abundant, the weight is light, and the price is cheap, so the future of the aluminum air battery is bright.

Unfortunately, the electrolyte will corrode the aluminum after mixing and will corrode when used. If a non-corrosive electrolyte is used, the battery performance will be degraded. When the battery is re-used and the electrolyte is extracted, it will be found to be unusable because aluminum is hydrophilic (absorbent). The researchers found a solution: rinse the electrolyte with oil.

Between the positive and negative electrodes, the new battery has a thin film, and the two poles of the battery are filled with electrolyte. Once the battery is no longer in use, the oil will flush near one pole of the aluminum, which will protect the aluminum because the electrolyte has a lot of water and it cannot mix with the oil. When we use the battery again, the oil is replaced by the electrolyte. Because the oil does not melt in aluminum, there is no oil left.

The researchers tested the batteries under semi-realistic conditions. They used up a small portion of the battery, then placed the batteries unused, waited a day or two, and repeated the previous process. This test is somewhat similar to the use of urban electric vehicles. The researchers found that the battery lasted for 24 days and was eight times longer than traditional lithium-ion batteries.

Can aluminum air batteries replace lithium batteries in the next few years? No, no. There are some complications to solve when charging the battery, so the original aluminum air battery may not be a rechargeable battery, or the number of times of charging is small. There is also a possibility that the battery can be easily replaced. In the service station, the robotic arm takes the car battery out and replaces it with a fully charged battery so that we can charge it with more complicated mechanical methods.

One more thing to say is that the aluminum air battery does not seem to be shared with the lithium battery. In a hybrid car, gasoline can be shared with the car. However, we can extend the cruising distance with an aluminum air battery. When the owner forgets to charge the main battery, the aluminum air battery can be temporarily used. As one researcher puts it, the future of aluminum air batteries is bright. He said: “You can use it, then drive the car into the driveway, stop for a month, then start the car, the battery still has a lot of power.”

Huawei Mate20Pro has 5 functions that Samsung Note9 does not have.

With the release of the 1T mobile phone 6T, the flagship machines of the major mobile phone manufacturers this year have basically appeared. Although in the past 2 months, every manufacturer released a smartphone has the urge to buy, but the difference is still very large. Before the release of Huawei Mate20Pro, Samsung Note9 is recognized as the Android machine emperor. However, due to Samsung’s lack of innovation in appearance and function, the position of the Emperor was successfully replaced by the more amazing Huawei Mate20Pro. Recently, the foreign media also took stock of the five features that Huawei Mate20Pro owned and Samsung Note9 did not. This also proves that the machine Samsung Note9 was pulled down by Huawei Mate20Pro.

1. Unlock the fingerprint on the screen

 

Although Samsung has been researching fingerprint scanning technology for ultrasound screens for several years, it has not been used in Samsung mobile phones. Even Samsung Note9, which has been highly anticipated this year, is still behind fingerprint recognition. The screen fingerprint unlocking currently used by Huawei Mate20Pro is an optical sensor. The recently released one-touch mobile phone 6T has a similar fingerprint unlocking principle. A closer comparison reveals that the smartphones that are currently unlocked by the screen are domestically produced. Samsung Note9 represents the highest level of technology in South Korea, and now it is also in the hands of domestically produced machines.

2.3D face recognition

 

At present, Samsung Note9 uses 2D face recognition to unlock, so the unlocking method has a very big security risk. Huawei Mate20Pro is equipped with 3D face recognition unlocking function for the first time this year. It may not be perfect, but in most cases, the speed of unlocking is not only fast, but also convenient and safe. The unlocking method of Samsung Note9 is still used for unlocking the rear fingerprint, unlocking the iris, and unlocking the face. It has been used for several years, and there is still no change.

3. Fast charge and wireless charging

 

Huawei’s Mate20Pro with a battery capacity of 4,300 mAh is definitely an innovative pioneer in smartphones. Equipped with a 15W wireless charging speed, it is scary enough, and now there is a 40W super fast charge. Samsung Note9 currently uses its own fast charge for nearly 2 hours to fully charge 4000 mAh, while Huawei Mate20Pro takes 69 minutes to fill a 4200 mAh battery. How big the gap is, a comparison will know. More critically, Huawei Mate20Pro also has reverse wireless charging technology, and can also charge iPhone XS and XSMax, Samsung S9+ wireless.

4. Three lenses

 

Huawei Mate20Pro’s Leica three lens is definitely the most enviable feature of Samsung users. Although Samsung released the Samsung A9S with 4 lenses, it is not as effective as the three-shot Huawei P20Pro. The Samsung Note9 camera effect is indeed very powerful, and the dual lens encounters the Leica three lens and only accepts the loss. At present, the three-lens mobile phone is only Huawei, but the Samsung Note9 does not. The future Samsung Note series will not carry three lenses, this is hard to say.

5.7 nm process processor

 

This is definitely the most envious of Samsung Note9 users. Although Samsung Note9 is equipped with the self-developed Orion 9810, but the actual speed test was hoisted by the 7-nanometer Kirin 980 processor, Samsung Note9 equipped with the Snapdragon 845 processor, is also crushed. The Kirin 980 processor is the world’s first 7-nanometer processor. At present, Samsung has not got rid of its dependence on the Snapdragon 845 processor. It is believed that Samsung will still be envious of the processor in the next few years.

Guo Minghao: Apple will update Face ID and iPhone antenna design next year

On November 10, 2018, analyst Guo Minghao released an investor forecast report related to the new iPhone antenna technology. He predicted that Apple will replace the antenna material and design, and will add a new Face ID to the iPhone released in 2019.

 

In the report, Guo Minghao mentioned the liquid crystal polymer LCP antenna technology that Apple used on iPhone X. The production process of such an antenna is also complicated, and there are fewer suppliers that can be produced. In the face of this situation, Apple’s control over the price is also limited. Faced with this situation, Apple will probably add a polyimide (MPI) technology antenna to the new iPhone released next year.

MPI antennas are not as “fragile” as LCP antennas, and production costs are lower than LCP. And because production requirements are lower than LCP, there are five suppliers that offer MPI antennas, more than LCP. In this case, when Apple talks with suppliers about the price, the space will be larger than before, and the cost has the opportunity to be controlled.

Although there are points of view, LCP is better than MPI antenna in performance stability and power consumption control. However, some analysts pointed out that the performance of the MPI antenna is also improving, and the performance gap between the two will not be too large.

 

In this regard, Guo Mingxi also indicated that Apple’s replacement should not have much impact. Instead, he is more optimistic about the MPI antenna in the report, thinking that this antenna will become the mainstream antenna for future iPhone models.

He expects that the 2019 iPhone will use a combination of four MPI antennas and two LCP antennas to replace the current six LCP antennas.

 

In addition to the antenna, Guo Minghao expects Apple to update Face ID. The update will improve the iPhone’s recognition ability in the dark environment. The new version of Face ID will appear in the new iPhone released next year.

Huawei Tablet M5 Youth Edition – 4 layout compact array microphone

On the hardware side, in order to better understand the user’s voice commands, four compact microphones are placed on the top of the Huawei M5 body frame, and Huawei’s R&D team is used to target various common noise interference scenarios. Long-term batch wake-up, identification testing, and repeated debugging of orientation, angle, and distance. In the end, you can ensure that any sentence you say to it within 5 meters can be included.

Huawei Tablet M5 Youth Edition – Move your mouth More understand your smart voice tablet

Intelligent voice interaction has become a differentiated selling point for hardware products such as smart speakers, mobile phones and watches. Huawei Tablet M5 Youth Edition is the first step to add an intelligent voice system to the tablet, which reduces the difficulty of interactive operation of the touch screen. Basically, the mobile phone can complete the operation of clicking and searching multiple steps before, or open the APP in one sentence.

Huawei Tablet M5 Youth Edition – Harman Kardon Theater Level Audio and Video Professional Tuning

In addition, as an audio-visual tablet, Huawei Tablet M5 Youth Edition is also equipped with custom smart power amplifier chip and Huawei Histen5.0 sound enhancement technology, plus Harman Kardon theater-level audio and video professional tuning, the entire speaker The listening effect is full and shocking, and the sound quality is upgraded to a higher level than the traditional tablet. Especially when using Huawei Tablet M5 Youth Edition to chase the drama, the sound effect will never lose to the 60-inch big TV.

Huawei Tablet M5 Youth Edition -10.1 inch 1920X1200 level IPS screen

In terms of screen configuration, Huawei tablets have always adopted a high level of configuration. Huawei Tablet M5 Youth Edition provides 10.1-inch 1920X1200 IPS screen, and Huawei provides a unique “sharp screen” display enhancement technology, intelligent adjustment of contrast and saturation with intelligent algorithms, in terms of color expression and enhanced image vivid effects Better performance.

Huawei Tablet M5 Youth Edition – Intelligent Voice Interaction Plus Product positioning is more extensive

In terms of details of workmanship, Huawei Tablet M5 Youth Edition inherits Huawei’s consistently stringent standards. Although it is called “Youth Edition”, the product positioning is not only for young people. From the comprehensive hardware level of the product, the entertainment application experience and the way of teaching and learning, Huawei Tablet M5 Youth Edition should belong to a wider range of users. . In addition, the new intelligent voice function has been added, which makes the tablet use operation more simple and closer to the life scene.

Pure version Win10 Lenovo laptop battery 60% stop charging solution

1. Left click on the “Battery” icon in the lower right corner of the screen. In the options that appear, select “Go to Lenovo Settings Center”;

2. Drag the progress bar down and find the option of “Battery Charging Threshold”, as shown in the figure:

3. Turn on the “Battery Charging Threshold” switch, and the dialog prompt will pop up, as shown in the figure:
4. Select the “Continue” button, the dialog box disappears, and a progress bar for setting the charging threshold appears, as shown in the figure:
Single battery model, the setting interface is as follows:

Dual battery model, the setting interface is as follows:

note:
1, the threshold is set to only a percentage of the value, the interval is 5%, such as 95% or 90%, (integer multiple of 5);
2. The battery starts to charge when it is lower than the stop charging threshold by about 6%;

3. In “Programs and Functions”, the software name is: Lenovo BatteryGauge, as shown in the figure:

After the above steps are modified, we can successfully restore the normal charging mode of the laptop! Friends who have encountered similar situations, come and take a look at it!