HP how to design a 32 hours battery life of notebook computers

HP engineers began to design a new laptop, like a battery expert John Wozniak on their first day. This is what makes the Hewlett-Packard to create a 32-hour battery life, part of a laptop computer.
And also tell you how important energy efficiency has become the modern electronics, thin, powerful, lightweight demand is enormous pressure on the amount of battery technician. The battery has been referred to as "the most humble and invention unsexy.", But it may become one of the most important battlefield in the future. The battery is $ 50 billion industry, it may be a bigger breakthrough. Is no hunt outlets a laptop charging, and more productive.
Wozniak (pictured), HP battery master to deal with requests from all sides. Industrial designers to thin notebook computer batteries. The marketing people want lighter weight. However, they have what the current work, and they may in the near future designer engineers can only like Wozniak.
Wozniak (Apple co-founder Steve Wozniak does not matter) said: "It depends on launch timing," the news of the Hewlett-Packard headquarters in Palo Alto, California, USA, the original garage conference, said: "We will be tools, and produce a couple different options. It's like a puzzle game, you see what kind of batteries are designed to accommodate some kind."
Hewlett-Packard HP EliteBook 8460p Notebook PC (right) launched last year to create 32 hours of the solutions for enterprise users. The last 32 hours, you must add an HP BB09 ultra-extended life laptop battery, the importance it attaches to the bottom of the laptop. , An increase of more than a pound weight. Some new solutions can be pushed to the life of 36 hours of the laptop.
I would like to now out. The standard battery provides about 10 hours of the life of the machine, according to HP meter. But life goes, if you extend battery snapped. Battery 9 cells (pink cylinder see below), and an increase equivalent to 100 watt hours, which is the legal limit; there will be more and HP ship dangerous goods. Once you capture it, about 200 watt-hour laptop battery life.
"It's continued emphasis on price," Wozniak said.
Longer laptop battery life, while improving the efficiency of the battery is very important, has been gradually improving. HP is committed to better power management for notebook computer, turn off the power supply or power supply components when not in use.
Wozniak said that if you keep the light level operation, and the use of six or seven watts, so you can stretch the battery life of 28 or 32 hours. Number of your laptop's wireless signal is sent you can do to reduce and by reducing the screen brightness.
Also help to replace the hard disk and solid-state flash drive. HP found that 18% when it uses flash memory instead of hard drives, it can improve battery life, the HP EliteBook 8460p.
HP also uses the integrated graphics of Intel Sandy Bridge - combine microprocessor and graphics on the same chip - rather than a separate graphics chip. Save another 26% in power savings.
Although the processor speed and storage capacity to keep the car forward, Wozniak said that the battery is about 3 - 5% per year in energy density, the energy generated by the battery in a given space. Have been made to try a lot of stretching out. But it is disappointing that numerous.
Wozniak said that the commitment of the silver-zinc battery shows 40% of the energy density. Battery chemical broke down after only 40 or 50 charges. In order to satisfy the consumers, the rechargeable battery should last hundreds or thousands of charges.
Some techniques attempt to replace the silicon anode carbon graphite anode, since the silicon can store more energy. But the problem is that the expansion in the scale. Silicon carbon package to offset some of the proceeds.
Batteries generate hydrogen gas when they are charging, resulting in swelling. And because of the danger of hydrogen explosion, fire or explosion is very real when it comes to battery operation. The battery can over time as well as corrosion and leaks of hazardous chemicals.
This is why the battery around the circuit, it can help to measure their responsibility, and to improve their efficiency from the battery itself, the physical separation.
The lithium-ion batteries used in laptop computers rechargeable type of battery than other children, and the lighters of various shapes. They are powerful, but with the passage of time the ability of cells weakened. When they use, the battery can get hot.
Some battery is round (see the picture in the pink cells) and other flat or prismatic (such as the image above)
"This has been the history of energy in a familiar," Wozniak said. "Theory of disruptive technologies. I do not know what is. A lot of new chemical substances. Battery industry's Holy Grail is a non-flammable electrolyte.
The electrolyte is a chemical solution (whether wet or dry), resulted in the electronic response. HP itself has done its own fuel cell alternative technologies, but it sold the business. Wozniak to maintain close contact with suppliers, manufacturing cells.
Right now, the thinnest battery size is about 2.8 millimeters, with the battery total thickness of 5 mm. The thinnest Ultrabooks (thin, Intel is pushing this year's fast computer) is about 18 mm and 13-inch model is 14 inches and larger display, and 21 mm thick. Intel requires at least 5 hours battery life.
Wozniak do not think too much of the energy density balance cells can be brought down to 2.5 mm.
Consumers of energy the largest notebook computers and tablet PCs, today is the monitor. The touch screen needs more energy than the average monitor.
Hewlett-Packard to the ambient light sensor on all of its EliteBook series models. These sensors adjust the brightness of the display according to the amount of light in a room. Toward the end of this year, Wozniak would like to see the Ultrabooks 5 watts of power operation at 25 watts, compared to many laptops in the past.