Xiaomi’s new Mi Sports Bluetooth headset are sweatproof offer 7-hours of battery

By Kunal Khullar /  07 Nov 2016 , 14:06

Xiaomi has transformed from just a smartphone maker into a technology brand. From power banks to air purifiers, there is no stopping the Chinese giant. It has just announced a new sports Bluetooth headset with a not so innovative name, the Mi Sports Bluetooth Headset.

The earbuds look very neat and offer a loop so to secure them around your earlobes. Yes, they are connected with a wire so they will be much more secure. In terms of weight they weigh at just 17.8gms and a 110mAh battery which is said to offer 7-hours of battery backup. It comes with Bluetooth 4.1 along with A2DP and it can be paired with up to two devices at the same time.

They are splash resistant with an IPx4 rating so a bit of sweat and light rain will not damage it. The company says that it has the capacity to operate in temperature range of -20°C to 70°C, but we doubt anyone would listen to music at those extreme temperatures.

The Mi Sports Bluetooth headset will come in two colour options, black and white and are priced at 149 CNY which is about Rs 1,500. They will come with five ear tips as well. No word if the company will launch the product in India as of yet.

Researchers develop prototype of next-generation lithium-sulphur battery

  27 Oct 2016 , 17:59

Researchers, including one of Indian-origin, have developed a prototype of a next-generation lithium-sulphur battery which takes its inspiration in part from the cells lining the human intestine. The batteries, if commercially developed, would have five times the energy density of the lithium-ion batteries used in smartphones and other electronics, the study said.

Working with collaborators at the Beijing Institute of Technology, the Cambridge University researchers based in Vasant Kumar’s team in the Department of Materials Science and Metallurgy developed and tested a lightweight nanostructured material which resembles villi, the finger-like protrusions which line the small intestine. In the human body, villi are used to absorb the products of digestion and increase the surface area over which this process can take place.

In the new lithium-sulphur battery, a layer of material with a villi-like structure, made from tiny zinc oxide wires, is placed on the surface of one of the battery’s electrodes. This can trap fragments of the active material when they break off, keeping them electrochemically accessible and allowing the material to be reused. “This gets us a long way through the bottleneck which is preventing the development of better batteries,” said study co-author Paul Coxon from Cambridge’s Department of Materials Science and Metallurgy.

Sulphur and lithium react differently, via a multi-electron transfer mechanism meaning that elemental sulphur can offer a much higher theoretical capacity, resulting in a lithium-sulphur battery with much higher energy density. However, when the battery discharges, the lithium and sulphur interact and the ring-like sulphur molecules transform into chain-like structures, known as a poly-sulphides. As the battery undergoes several charge-discharge cycles, bits of the poly-sulphide can go into the electrolyte, so that over time the battery gradually loses active material.

By preventing the degradation of the battery caused by the loss of material within it, the new design, reported in the journal Advanced Functional Materials, overcomes one of the key technical problems hindering the commercial development of lithium-sulphur batteries.

IANS

Samsung Electronics in talks with LG Chem for smartphone battery supply says Nikkei

  21 Oct 2016 , 10:42

Samsung Electronics Co Ltd is in talks with LG Chem Ltd to supply batteries for its new smartphones, the Nikkei newspaper reported, citing sources.

Samsung, the world’s biggest smartphone maker, scrapped production of the fire-prone Note 7 and said it would take a hit to its operating profit of about $3 billion over the next two quarters as a result.

The company had blamed faulty batteries for the original problem in its flagship device, but has given no indication about the cause of the overheating seen in the replacements.

The companies are discussing ways to supply batteries to Samsung’s new smartphones starting next year, the report said. (s.nikkei.com/2ew8B9f)

Samsung’s subsidiary, Samsung SDI Co Ltd, is the dominant battery supplier for the Note 7, supplying around 70 percent of the batteries globally, according to analyst estimates.

Samsung and LG Chem were not immediately available for comment outside regular business hours.

Reuters

According to scientists, smartphone batteries emit more than 100 toxic gases

  21 Oct 2016 , 15:12

Not just catching up fire or exploding as you sleep next to them, dozens of dangerous gases are being produced by the batteries found in billions of consumer devices like smartphones and tablets, scientists have warned. The team has identified more than 100 toxic gases released by lithium-ion batteries, including carbon monoxide, which can cause strong irritations to the skin, eyes and nasal passages and harm the wider environment.

According to the researchers from the Institute of NBC Defence and Tsinghua University in China, many people may be unaware of the dangers of overheating, damaging or using a disreputable charger for their rechargeable devices. “Nowadays, lithium-ion batteries are being actively promoted by many governments all over the world. The lithium-ion battery is used by millions of families, so it is imperative that the general public understand the risks behind this energy source,” said Jie Sun, lead author and professor at the Institute of NBC Defence.

The dangers of exploding batteries have led manufacturers to recall millions of devices. Dell recalled four million laptops in 2006 and millions of

Bluetooth 5: What’s New and What’s Good?

The Bluetooth Special Interest Group (SIG) has announced a new version of the wireless standard. Bluetooth 5 comes with a host of improvements, some that benefit users and some that benefit advertisers — and we’re going to explore them in this post.

Bluetooth has been around for more than 20 years, ever since Ericsson first invented it. But it really caught on as a major wireless technology only after the formation of the SIG in 1999. Today, it’s a widely used standard for connecting two nearby devices wirelessly. You’ll find it in smartphones, computers, headphones, speakers, cars, and other gadgets.What Is Bluetooth? [Technology Explained] What Is Bluetooth? [Technology Explained]READ MORE

The last major version of Bluetooth was Bluetooth v4.0, released in 2011. Since then, it only got one major iteration (Bluetooth v4.2) in 2014. Now, Bluetooth 5 is looking to take the standard to new heights by connecting every sort of device in your home.

What Is Bluetooth 5?

Bluetooth 5 is the specification agreed upon by the SIG, which is comprised of 30,000 different companies. Having a common standard is important since it means devices can talk to each other more easily and with fewer problems.

Bluetooth 5 includes improvements for range, speed of transfer, power consumption, and bandwidth. It also adopts a new nomenclature. There is no dot or “v” any more, like with “Bluetooth v4.2”. Now it’s just Bluetooth 5. Simple.

Bluetooth 5 Has 4x Longer Range

The biggest improvement in Bluetooth 5 (BT 5) is its range. Anyone who has used Bluetooth knows that it’s effective only up to a certain distance between devices — and that distance increases four times with BT 5.

The new standard theoretically supports distances up to 300 meters (1,000 feet). Of course, that’s in theory and in test conditions, much like the previous standard’s claim of 75 meters. That range holds up only outdoors, with no other interfering signals, and with direct line of sight between devices.

In real world settings, such as in a home or office, Bluetooth 4.2 works at distances of around 10–15 meters. If we assume the same proportional loss in range, Bluetooth 5 should connect at distances up to 40–60 meters, which is still a significant boost. It’s another step in how Bluetooth makes your home artificially intelligent.Here's How Bluetooth Will Make Your Home Artificially Intelligent Here's How Bluetooth Will Make Your Home Artificially IntelligentZuli is taking geofencing to the next level, and their new geofencing-capable plugs show some of the potential of what a smart home can really do.READ MORE

As for immediate benefits from this, the most common uses for Bluetooth just got better, like listening to music on wireless speakers while playing from your phone.

Bluetooth 5 Has 2x Speed of Transfer

As we move into the age of wearables, Bluetooth transfer speeds are getting more important. Right now, your smartwatch connects to your smartphone on Bluetooth. So if you take a photo on your smartwatch and want to sync that to your phone, it has to transfer over Bluetooth.

Bluetooth 4.x supported a maximum speed of 1 Mbps. Bluetooth 5 doubles that to 2 Mbps. So whether it’s transferring data from your smartwatch to phone, or from the phone to a Bluetooth photo frame at home, it’s going to be much faster.

Bluetooth 5 Uses 2.5x Less Battery

For the longest time, there’s been this notion that Bluetooth drains your phone’s battery quickly. That’s a smartphone myth that simply isn’t true any more. It has been power-efficient ever since the introduction of the Bluetooth Low Energy (BLE) module, a.k.a. Bluetooth Smart.10 Popular Smartphone Myths That Aren't True 10 Popular Smartphone Myths That Aren't TrueWe're going to tackle 10 of the most prevalent smartphone myths today and see if we can't do our part in ending the misinformation surrounding today's smartphones.READ MORE

Bluetooth 5 takes this to new heights by reducing power usage by as much as two-and-a-half times what Bluetooth 4.2 used.

Technically, this will require your device to be running on Bluetooth Smart. But don’t worry, almost every Bluetooth gadget uses this standard as the default these days.

Bluetooth 5 Transfers More Data Than Before

This one change isn’t going to be directly useful for regular users like you and me, but it will benefit us indirectly: Bluetooth 5 has increased the bandwidth of data it can transfer.

Bluetooth uses something called “connection-less broadcasting”. This lets an advertiser send data to your Bluetooth device even if you aren’t connected to them.

For example, let’s say you’re in a mall and your smartphone’s Bluetooth connection is on. An Apple store at the mall can have a Bluetooth beacon (transmitting device) that sends its latest offers and sale information to your phone. You don’t need to be connected to the Apple store’s beacon for that.

Up until recently, this practice wasn’t widely adopted because the bandwidth of data you could transfer was quite low. Currently, an advertiser can only send 31 bytes of data. With Bluetooth 5, that size increases to 255 bytes.

The big change this facilitates is that Bluetooth 5 will be able to transfer navigational information, which means that once you’re in a certain location, you can get information useful to that location.

Naturally, this will make an impact in how advertisers use Bluetooth beacons. But there are some non-commercial benefits too. As the Bluetooth SIG puts it:

In scenarios where contextual awareness like navigation and pin-point location are crucial — such as hassle-free airport navigation experiences, asset tracking of warehouse inventory, emergency response, even smart city infrastructure that helps the visually impaired be more mobile — Bluetooth 5 will send custom information people actually find useful in that moment without connection and application barriers.

Of course, this can open you up to some smartphone security risks with Bluetooth. But remember, you need to act on the information, like tapping it, to get infected. So be cautious and use safe practices and you’ll be fine.4 Smartphone Security Risks To Be Aware Of 4 Smartphone Security Risks To Be Aware OfThere seems to be a sort of general malaise among users – the tech savvy and everyday users alike – that because your computer fits in your pocket, it can’t be infected by malware, Trojans,...READ MORE

Bluetooth 5 Requires New Hardware

All these changes, unfortunately, won’t be available on your existing phone. Bluetooth is backwards compatible, so a new Bluetooth 5 device will still connect with your old Bluetooth 4.x device. But such a connection is without any of Bluetooth 5’s benefits.

To get the benefits of Bluetooth 5, you need both devices to be running it. And since the changes are massive, Bluetooth 5 will require new hardware. That means the existing Bluetooth 4 chip in your phone or speaker can’t be “upgraded” to Bluetooth 5. You’ll need a new device that comes with Bluetooth 5 built-in.

When Will You See Bluetooth 5 Devices?

The Bluetooth SIG has so far only announced that it has agreed upon the Bluetooth 5 standard’s specifications. It hasn’t yet released the final technology.

That technology will be released to manufacturers in late 2016. Once manufacturers get their hands on it, it takes them a short time to incorporate it into their gadgets.

Best case scenario, you can expect Bluetooth 5 to feature in the first lot of new flagship smartphones in 2017, usually announced at Mobile World Congress in February.

Most Important Takeaways for Bluetooth 5

Here’s a quick summary of what matters to everyday folks:

• Your devices will connect at longer distances. Smart fridges, wireless speakers, and other gadgets in your smart home should be able to talk to each other easily.
• You will be able to transfer data faster between gadgets. This is great for wearable devices, like smartwatches, that are paired with your smartphone.
• You can leave Bluetooth switched on, without worrying about battery life.
• You will need a new device, since Bluetooth 5 won’t work on your current gadgets.

Are You Excited About Bluetooth 5?

The Bluetooth SIG seems to have made all the right changes to make Bluetooth 5 more popular than ever before. The low power consumption and the increased range are especially tempting.