Not afraid to sit far PS4 Slim handle or support 5GHz band connection

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Tencent Digital (Compiler: Bear) Sony's new PS4 Slim host has not yet been officially confirmed, but judging from the current exposure, the gamepad will also support dual-band wireless connections in addition to the thinner and lighter host. It is reported that PS4 Slim's handle will support the 2.4GHz and 5GHz two frequency bands, and the current cash PS4 handle only supports 2.4GHz.

The significance of this change is very significant. At present, almost all wireless devices in our home use the 2.4GHz band connection, so this band has become very “crowded”, and even neighbors and other nearby devices are also using the same 2.4GHz band, so if you use too many people, not only will affect the connection speed, and even will be completely blocked.

With the emergence of the new 5GHz, the problem of congestion in the 2.4GHz band can be effectively solved. The 5GHz main frequency is not only faster, but also has a wider "road", such as an AC1900 router, with a speed of 600MB/s in the 2.4GHz band and 1300MB/s in the 5GHz band.

However, at present, 5GHz also has some disadvantages, such as poor ability to penetrate the wall. Therefore, users choose how to choose 2.4GHz or 5GHz, according to their own situation. If the distance between the user's host and the handle is very close and there is no obstruction, the future use of the 5GHz band connection handle is undoubtedly the best choice.

Sony's cash PS4 was released at the end of 2013, so it is not surprising that it does not support dual-band connections. With the 5GHz devices gradually increasing in recent years, Sony will also add support for the 5GHz band on the new PS4 Slim.

The PS4's wireless module is currently provided by Marvell, the Avastar 88W8797, a device that was introduced in 2011 and supports wireless and Bluetooth 2.1 connectivity. At the same time, Marvell also provides Ethernet components for the PS4. Therefore, at present, the network connection performance is not the best.

So for the user, if the distance between the host and the handle is relatively long, on both sides of the room, you can continue to use 2.4GHz connection, but if the distance between the host and the handle is very close, then 5GHz is undoubtedly faster and more delayed. low. Whether this news is comfortable or not, you have to look at the future when the PS4 Slim is released.

Source: digitaltrends

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Lithium-boron Alloy

Lithium-boron alloy is a composite material composed of a brittle Li7B6 matrix phase with a porous structure and a ductile Li filling phase. The density is 0.88±0.04g/cm3. The appearance is silver-white metal. It is extremely unstable. It is easily deteriorated when exposed to air and reacts with water. severe. Lithium-boron alloy is mainly used as anode material for lithium-based thermal batteries. It has outstanding advantages such as high specific energy, high specific power and low polarization, electrochemical potential similar to that of pure lithium, and solid state above 600℃. It is a new type of lithium-based thermal battery. The excellent negative electrode material. Compared with the currently widely used Lithium-Silicon Alloy, the unit cell assembled with the lithium-boron alloy as the negative electrode material has better performance in both the highest voltage and the discharge working time.

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