Smart phones

Hitachi Ltd. and Hitachi Vehicle Energy (Hitachi Vehicle Energy) on January 12, 2010, announced the two companies for the plug-in hybrid (PHEV) developed both high energy density and high output density lithium-ion rechargeable battery. The development of unit achieved 120Wh/kg energy density and 2400W/kg (SOC: 50% time) of the output density. And is currently being mass-production hybrid (HEV), compared with the unit, the output is basically the same density and energy density of 1 times.

PHEV with cell dimensions of 146mm × 110mm × 30mm, weight 0.75kg. The average voltage of 3.6V. Details were not disclosed, but the company said cathode material used, including types, including Mn oxide, carbon anode materials used. Has installed the pilot line, scheduled to run from the spring of 2010, automobile manufacturers began to supply samples.

Prior to this, Hitachi Vehicle Energy HEV has been developed with the unit as the center forward. The company plans to mass production in the current cylinder-shaped cell as the first two generations of products for the United States in 2010, GM (General Motors) the supply of the weak hybrid 3rd generation products, will be 300,000 units per month The scale of production. 3rd generation product is 92mm diameter and 40mm × length of the cylinder-shaped unit, the current capacity of 4.4Ah, the average voltage of 3.6V, the output density 3000W/kg.

In addition, the output density to three-generation 1.5-fold, reaching 4500W/kg the 4th generation has already been developed, and from the start sample shipments in 2009 fall. 4th generation product is an excellent cooling performance of square units, and the use of Mn-class cathode materials and amorphous carbon anode material.

Dell decided to suspend the closure of the United States, North Carolina, Winston - Salem (Winston-Salem) in a desktop assembly plant project.

As a series of cost-cutting part of the plan, the plant scheduled to shut down last month, but Dell has now said that as market conditions improved, the plant’s closing time will be postponed at least until July of this year. Dell has previously decided to postpone the closing time in April.

The plant was put into use in 2005, the peak period, a total of 1,100 employees. Dell Inspiron 1721 battery cuts in November last year, half of the factory employees, laid off about 500 people. As the world’s third-largest computer maker, Dell employees in Texas, the total number of the central region up to 1.6 million people.

Dell reported a recently released, the company ended January 31, within the fiscal fourth quarter profit of 334 million U.S. dollars, 14.9 billion U.S. dollars to achieve revenue; the same period last fiscal year profit of 351 million U.S. dollars, 13.4 billion U.S. dollars to achieve revenue .

Battery for digital cameras is the key to a key, probably second in importance only lens, and want to photograph in Convenience, a powerful battery to provide power as a follow-up is essential. But even the best battery time, if not be properly carry out maintenance and maintenance, will not be long before lost a strong momentum, so battery maintenance is very important.

Battery Maintenance

For a (section) digital camera battery, the use of the length of time, not only with the quality, power on, in fact, with the user’s operation also has great relevance. Most photographers are accustomed, after each time the camera runs out of place inside the camera bags, or placed inside cabinets, batteries（compaq EVO N400c battery, compaq EVO N410c battery）are not out to save individually, this approach sounds like there is no problem, but not conducive to battery protection.

Generally speaking, if more than 15 days do not use the camera, then best to remove the battery from the camera inside a separate storage, preservation of the environment is best dry and shady place, and do not store the battery together with metal objects.

According to our survey, is currently in the market you can buy the majority of digital cameras use lithium batteries, it is relatively easy storage. The only caveat is that the long-term is not used, preferably at intervals of 2 months, once to activate the battery, that is, charge and discharge time, this can effectively extend battery life

As for the Ni-MH battery 5, the most annoying is the memory effect, this effect will reduce the total capacity of the battery and the use of time, and as time goes on, less and less stored charge, the battery also will consume the more to faster. Therefore, we should try to be all used up rechargeable power, each charge must be sufficient to break the most full.

If you go out when the temporary use of alkaline batteries, we must remember that in time out, or else a long time if not used, the battery is easy to Tangshui corrosion circuit, the camera could not escape the destiny scrapped.

For the use of alkaline batteries of the user, as already mentioned, bear in mind is that he finished in the use of digital cameras, will surely remember that removing the battery to avoid battery fluid flow phenomena causing damage to machines.

As for the use of rechargeable nickel-metal hydride batteries and lithium batteries users. The battery charge is very particular about, and bought back the battery power is low or no power in general, the first charge must be adequate. Lithium battery charging time are generally more than 8 hours, while the Ni-MH battery charging time are generally more than 16 hours. To achieve the best results, that is, the battery reached its maximum power, there are generally three or more times repeated charge-discharge can. Batteries in use three times, the best place to find the opportunity to make a further charge fully recharge, so as not there is residual power in the battery when the repeated charge, or will shorten battery life. Battery charging and exhausted tend to be more heat, it is best to be cooled and then loaded camera battery.

However, note that the lithium batteries because there is no memory effect, so do not discharge, otherwise it will destroy the battery structure, and loss of battery life.

In addition, in order to avoid the loss of electricity, use nickel-metal hydride battery user, remove the battery charge after the power end, do not let the battery poles in contact with conductors at the same time, for example, do not use your fingers at the same time at both ends of the battery contacts. The use of lithium batteries users should try to keep the camera battery box battery positive and negative contact points clean, if necessary, you can use a dry cloth gently wipe the swab and then into the battery.

Also need to note that, even if the user is to use lithium batteries in the long run does not use a digital camera, they should also be fully discharged, remove the battery, stored in a dry, cool environment. The other should be noted that, whether it is the use of nickel-metal hydride batteries or lithium batteries of users, it is best not to have a good electrical charge the battery on the bag, pocket, bag or container with metal objects in order to prevent short-circuit .

Digital camera battery saver Dafa:

1, to avoid the frequent use of flash: If you are not a professional photographer who, then, except in the invisible fingers of the night, normal daytime light intensity for the average digital camera for sufficient.

2, as far as possible to avoid unnecessary operation of the zoom: zoom the camera lens Yi Shen a shrink, very power. You can move the pace of hyperactivity, use the “manual zoom” approach to replace the “camera zoom” in order to save power.

3, Do not let the screen has been lit: If power limited circumstances, can turn off the LCD screen, with screen viewfinder to adjust the composition, for example a digital camera, LCD should be considered as the most power-hungry components, general digital camera, close the LCD screen can be used time after the original duration of the three-fold.

4, less shooting and video: minimize the use of multi-shot and dynamic image video capture function, because the completion of these features is to use the built-in buffer body to temporarily save the screen shot, the power consumption a lot.

5, avoid frequent opening and shutdown: Many users know that has been lit display is power, so in use to save electricity, the frequent opening and shutdown. In fact, frequent open, shut down the electricity wasted consumption than bright display even more, especially for larger diameter lenses, but also require a substantial stretch of the camera, the switch machine is power. Most digital cameras have auto-shutdown option, this setting should not be set too short, otherwise easily lead to frequent open, shut down. Of course, frequent artificial opening, shut down should also be avoided.

6, optical image stabilization Wu Chang-Kai: optical image stabilization is through driving the lens or image sensor components is offset by video and photo material relative motion between the sensor achieved. No matter what kind of optical image stabilization mode, would lead to a small power consumption, in particular, some models compaq EVO N400 battery, compaq EVO N410 battery）can be Anti-Shake mode is set to “always open” so that the power loss caused by will be more severe. To this end, we have a good scenarios in the light should be shut down optical image stabilization feature, you must use should also be less “always open” mode.

Battery five main parameters: battery capacity, nominal voltage, internal resistance, discharge termination voltage and charge termination voltages. The battery capacity is usually Ah (AH) said, 1Ah is able to 1A of current, discharge 1 hour. Unit cell in the number of active substances contained in the decision-cell battery charge amount, while the content of active substances from battery materials and volume of the decision, therefore, usually the larger the battery size, capacity higher. And battery capacity of the relevant parameter is the battery charge current. Battery charge current charging rate C is usually expressed, C is the battery rated capacity. For example, with 2A current on 1Ah battery, charge rate is 2C; Similarly, with 2A current on the 500mAh Inspiron 6400 battery,Inspiron 640m battery, charge rate is 4C. 1 w2 p “b9 d: B1 Z (S
The battery just factory, the positive and negative electrical potential difference between the nominal voltage as the battery. Nominal voltage from the electrode materials, electrode potential and the internal electrolyte concentration of the decision. When the environment temperature, the use of time and working condition changes, the unit’s output voltage is a slight change in the battery, in addition, the battery output voltage and the battery power is left there is a certain relationship. Cell nickel-cadmium battery nominal voltage of about 1.3V (it is generally considered to 1.25V), cell Ni-MH battery nominal voltage of 1.25V. ) J1 k2 i4 ~ 1 H2 u1 M
The battery internal resistance determined by the resistance plate and ion flow resistance. In the charge-discharge process, the plate resistance is unchanged, but the impedance of ion current with the electrolyte concentration will change and increase or decrease in change of charged ions. , \ + A “? 4 h * i
Sufficient battery power, the most active substances board has reached the saturation point, and then continue charging, the battery voltage does not increase, the voltage at this time known as the charge termination voltage. Nickel-cadmium battery charge termination voltage of 1.75 ~ 1.8V, Ni-MH battery charge termination voltage of 1.5V.
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Table 1-1 nickel-cadmium Inspiron E1405 battery,Inspiron E1505 battery at different discharge rate of the discharge-off voltage) f7 B. g * r1 V: R
Discharge rate of discharge termination voltage of 8 ^”(0 X! T: p & M’’s-Q5 ^
8-hour rate of 1.10V”H! I * [$ V $)”p. n
5 hours rate of 1.00V, X-o”p! T &? * Q7 Q) P
3 hours rate 0.8V3 F / j + N * b8 N
1 hour rate 0.5V
Discharge termination voltage is the minimum allowable battery discharge voltage. If the voltage is lower than the discharge termination voltage battery to discharge, the battery voltage decreased rapidly at both ends to form a depth of discharge, so that the resultant formation of a very board when it is not easy in the normal charging resume, thus affecting the battery life. Discharge voltage and discharge rates of the termination.

Study at home and abroad-iron battery has a high iron and lithium iron are two kinds of BYD-iron battery appeared to be the former, in addition to BYD things currently no other manufacturer claims that its products can be a large-scale practical use.

Of high-iron battery is a synthesis of a stable ferrate (K2FeO4, BaFeO4, etc.) can be used as Inspiron 1300 battery cathode materials for high-speed rail to produce the energy density, small size, light weight, long life, non-polluting new chemical batteries.

Iron battery advantages:

High-energy high-capacity. Currently on the market than the power of civil battery only 60 - 135w/kg, and the high-iron battery can reach 1000w/kg above average battery discharge current is 3-10 times more. Particularly suitable choice for high-power, high current occasion. High-iron battery cost effective. Alkaline manganese batteries can not meet the current need to power high-current high-capacity digital cameras, video cameras and other electronic products, the needs of lithium-ion batteries due to cost in this regard does not have a strong competitive edge.

Flat-iron battery discharge curve. Such as Zn-K2FeO4, 70% more than the discharge time in the 1.2-1.5V.

Rich in raw materials. The most abundant element in the Earth’s crust for the aluminum and iron content of iron in the Earth’s crust at 4.75%, manganese content of 0.088%. In addition, each mol +6 valent iron can produce 3mol electronics Inspiron 1420 battery,Inspiron 1501 battery, while the price of manganese per mol + 4 can only produce 1mol electronics, iron dosage is very rich in its own circumstances, the only Mn 1 / 3, significant savings in the social resources, reduce raw materials costs. MnO2 on the market about 9,000 yuan / ton, Fe (NO3) 3 about 7,500 yuan / ton.

Green non-polluting. After discharge of ferrate product for FeOOH or Fe2O3-H2O, non-toxic pollution, environment-friendly. Does not require recycling.

Released last week, thanks to Apple iPad, Tablet PC’s future products that have once again become a hot market. Bill Gates (Bill Gates) as early as 2001 on the Tablet PC is expected to replace the laptop.

Now, other PC makers hope that they can eventually create a market for this technology.

However, Apple accounted for the market focus, Hewlett-Packard are also exploiting Windows-based system, Slate has attracted a lot of attention, but Dell has taken a different approach.

Has been since early January, Dell has been demonstrating its Mini 5; The touch-screen device than the Apple and HP’s product size should be small. This product looks like an oversized iPhone, using Google’s Android operating system. Dell said that, Mini 5 will be on sale later this year. Dell’s vice president for mobile products Yuehansuode (John Thode) has been trying for two years proved, already has a smartphone and notebook computers to consumers will be willing to buy what computing products.

Dell really has been carrying out consumer surveys to arrive at their conclusions. Sood said: “Consumers want the product price can not be expensive and appearance must be thin, have to have a longer battery life time.” What is surprising is the market already has products that meet this criteria: Automotive navigation equipment. But the navigation equipment does not have the Internet access conditions.

Sood said that Dell is very optimistic about the prospects for portable Internet access devices, because they think that such products can be staggered with the Apple iPhone or a tablet PC competition. With the mobile phone tariff and PC hardware prices continue to decline, it seems there is a low-cost Internet access product market.

Sood said that Dell is now introduced a new flat-panel products, Apple’s competitors will have more market space; he did not think the original iPhone Apple iPad able to obtain the kind of fanaticism market reaction. He said, iPhone’s success is difficult to once again performed a miracle, Apple will face more competition this time.

However, he predicted the development prospects of flat-panel market cautious. Sood said: “If someone tells you they know exactly the future market, then they were either Apple, or is bragging.”

1, web browsing insufficiency

While Apple CEO Steve Jobs (Steve Jobs) was not revealed at the press conference, but the iPad browser does not support Flash, which makes a lot of sites can not be displayed correctly on the iPad. Even if not entirely dependent on Flash, but many popular websites will continue to use Flash to build a number of elements, so iPad browsing these Web sites can not display all the contents. This problem can not be ignored.

2, does not support multi-tasking

If you wish to use iWork office is also able to surf the web, it will certainly be disappointed, because this function can not be achieved iPad. Jobs also did not mention at the press conference iPad does not support multi-tasking. In the area of today’s tablet PCs, multi-tasking is not only a demand can even say that is a must.

3, can not output video

Despite the iPad known to support HD content through iTunes, but after reading iPad will be found that the product is not equipped with video output interface. This allows users to high-definition TV or monitor can not watch video content. So far, iPad video capabilities still seems to rely on iTunes to achieve.

Four, can not print documents

When a user receives important files on the Mac and want to print it out, just click the “Print” button can be realized. However, iPad does not provide this feature. While Apple iPad positioned between a iPhone (mobile Internet), and notebooks between the products, but this Tablet PC can not connect to other devices print jobs. The lack of this feature would make many people hesitant to buy when the iPad.

5, the lack of DVD or Blu-ray drive

iPad is not equipped with CD-ROM. Indeed, iPad is a mobile device is not ready to replace the computer. However, Apple still use them as an entertainment device to promote, in that case, naturally should be provided to facilitate the playback of movies or television.

6, Starter Edition is not meaningful to

Many people believe that the minimum price of 499 U.S. dollars is reasonable enough to attract consumers to buy iPad. But to note that 499 U.S. dollars in iPad Starter Edition does not include 3G modules, and storage space is only 16GB. This product is only applicable to those who use the iPad at home and do not store too much content users, but the positioning of iPad is a portable entertainment device. If the lack of 3G connectivity, and storage space is only 16GB, it can not provide a rich mobile entertainment experience.

7, reading experience poor

As the iPad did not use E-Ink technology or OLED display, it can not be achieved a long time to read, but reading it is Apple’s critically-acclaimed feature. Indeed, iPad technology allows users to view color books, but more suitable for E-Ink e-reader, because the technology can mimic the real books, but also to read a long time without fatigue. With the iPad reading on the iPhone is like the queen, like reading, for most readers, this is not the best experience.

8, does not support USB devices

While Jobs said, iPad is equipped with many built-in feature, but users still inevitably have to add some peripherals. Because not equipped with USB and FireWire interfaces, it is difficult to add peripherals. Although Apple says it can use peripherals through an external base, but users must have another reason to buy products. Does not support the USB interface is Apple committed a big mistake.

9, application compatibility, good

Apple spent a lot of time to developers to demonstrate the application of iPad operation. Apple even said that, iPhone application store without modification of existing products can be run on the iPad. Nevertheless, iPhone applications still need to be upgraded to be able to adapt to iPad larger screen. This is disappointing.

10, is expected to show a better alternative

Steve Jobs said at the press conference, iPad is a revolutionary product. But through further investigation we can easily find that this is only a queen-size iPod Touch only. More importantly, Dell, HP and other vendors in this area is likely to launch better products. Apple certainly do not want users to know this, but when the user is not aware of iPad best of tablet PCs on the market, there may be a surprise.

For some users to complain about Windows 7 laptop battery life to shorten the time of the issue, Microsoft said recently that this is not Windows 7 system error.

Recently, some users have, from the Windows Vista upgrade to Windows 7, the battery life from 2 hours into a half an hour, which Microsoft claimed the new system will extend battery life quite the contrary.

Moreover, sometimes despite the battery business as usual, the system will judge whether the error that the battery has been exhausted, and recommends that users immediately be replaced. Some users said that he did you are prompted to replace the old batteries, but the new battery or continue to receive the same warning.

In response, Microsoft said Monday, after a survey found that, Windows 7 itself is not a problem. The reason that prompts for replacement batteries, because the performance of this piece of the battery failed to meet specific targets.

Microsoft also said that the features are new features in Windows 7, the old version of the system users have never seen such prompt. Thus, there may be some surprise.

U.S. market research company Retrevo Pulse’s consumer survey found that U.S. consumers a new Apple Tablet PC iPad little interest in buying a lot of potential consumers now feel that they do not need this Tablet PC.

Retrevo on January 16 to January 20 Apple iPad released before and 27 January to 3 February, after Apple released this product, random survey of more than 1,000 Retrevo users. The results showed that in Apple’s iPad before the release, 48% said they had heard of this product, but 26% of the people that there is no interest in buying. In Apple’s January 27 release of this product, 80% said they know the iPad, but 52% said they do not intend to buy.

Retrevo also asked consumers to Apple’s iPad before and after the introduction of the need for tablet PCs. The results showed that, Apple released iPad before, 49% of respondents said they do not need Tablet PCs, while Apple after the release of this data into a 61%.

The survey also showed that 59% of consumers unwilling to pay an extra 130 U.S. dollars for the iPad with 3G Internet access, only 12% of people expressed their willingness to add money to buy the 3G functionality.

One of the notebook computer giant later this year, Asustek plans to launch its own e-readers and tablet computers, Apple’s rivals locked iPad.

ASUS CEO Jerry Shen, in the 4th quarter of fiscal 2009 shareholder meeting, said the company will release tablet computer is focused mainly on the existing body of content providers.

In addition, the company will this year, 1 to 5 June, held in 2010 Taipei Computer electronics trade show (Computex Taipei 2010 electronics trade show) posted on the company’s first e-reader Eee Book. Asus has not released the details related to this product.

During the meeting, Jerry Shen, Asustek will also suggest to the outside world to launch a notebook computer called the smartbook that computers and the Internet on the market today is very similar to the use of a microprocessor and a number of smart phones commonly used parts. As the use of laptop batteries, so battery life smartbook far more than the current Internet access to this. Asustek’s market this year smartbook optimistic about the prospects.

Last year, the chip maker Qualcomm Inc. Computex conference in a high-profile shows the use of Google Android operating system, ASUS Eee PC smartbook. But then Asus did not immediately bring to market, the official explained that they did not want the limited engineering resources on a product without a market test. Last year, only a small amount of smartbook to enter the market, but also in the global mini-notebook market has not caused any reaction.

Google Chrome OS is a specifically for the mini-notebook and tablet computers, the operating system platform design, is expected to debut later this year. Currently, many Taiwanese manufacturers have expressed strong interest in it.