Electricity storage devices News

Japan on the use of lithium battery power storage device boundary Easy

Japan’s Economy, Trade and Industry established a working group discount for using lithium – ion batteries and rechargeable nickel metal hydride rechargeable battery, power storage device limitations Discover.

Before this, use lithium ion batteries and a power plant, the rechargeable energy storage devices as rechargeable batteries out metal hydride, engineering plans must be approved by competent authorities. First nuclear power with the same level of control item “” (produced by the province). Explore the feasibility of future restrictions rest with possible other energy storage technologies (electric double layer capacitors and fuel cells) make, only you can apply.

Name of work group “to control electrical storage devices, the Working Group” Integrated Natural Resources and Energy as a nuclear power safety security check electrical safety committees will be established by a subsidiary of smaller organizations. To use lithium ion rechargeable battery and leaving metal hydride rechargeable battery boost, power storage devices by Japan’s growth and popularity in the mid Province, decided to adjust the existing management system. Moreover, even before the detection of ambiguous standards of rechargeable battery technology is planned.

Communication protocol

With the battery pack in the power measurement chip communication methods to determine the nature of the battery. The system can follow the HDQ16 interface protocol to communicate with smart battery packs, in addition to the chemical nature of the battery pack, but also can be battery voltage, charge current, number and other information is read for display purposes charger.

Charging Unit HDQ bus can read the smart battery. HDQ16 interface protocol is based on the instruction protocol. A processor sends an 8-bit instruction code for the smart battery, the 8-bit instruction code comprises two parts, 7 HDQ16 instruction code (bits 0 to 6), and a read / write commands. Read / write commands directed smart battery stores the following 16-bit data to a specified register or the output of the specified 16-bit data register. In HDQ16, the data bytes (instructions) or word (data) bits are the main priority transmission.

A block transfer consists of three sections. The first part of the host or smart battery using the pen set to a logic low state HDQ16 a tSTRH: B-time starts to send. The next meeting is the actual data transmission, data in tDSU Location: B-intervals to be effective, the negative border is used to start communication. Data bits to maintain a TDH: DV time interval so that the host or smart battery-bit sample data.

Beginning Communication in the negative border, the last part of the pen on the back to the HDQ16 a logic high state for at least tSSU: B to maintain the transmission time interval to stop. Finally, a logical high state must maintain a tCYCH: B time interval for time to block the transfer was complete stop.

If the communication error (eg, tCYCB> 250μs), will host a BREAK signal is sent to the smart battery, allowed for control over the serial interface. When HDQ16 pen in a time interval, or even a long time for the logic low state, the Smart Battery will detect BREAK. Dan, HDQ16 pen back to its normal pre-set the high logic state 1 TBR time interval. Then, the Smart Battery is ready to receive commands from the host there.

HDQ16 pin is an open drain and requires an external pull-up resistor.

Figure 5 is a logic analyzer display HDQ communication on the bus waveform.

Foldable Battery News

The U.S. Rensselaer Polytechnic Institute researchers have recently developed a new type of collapsible battery, refreshing.

The battery is the same shape as the paper can be bent, cut with scissors or molded into any shape that people in need. To do the battery acid material is a full sheet of paper, paper with embedded carbon nanotubes. Carbon nanotubes to form electrodes, paper and serve as a diaphragm, electrolyte, so the current can flow. Although this battery is only a few centimeters square, but the researchers believe they tend to be used in the electronics industry and other needs of the smaller, lighter power supply areas.

Rensselaer Polytechnic Institute bio-and interdisciplinary research center, Robert Professor Hom Haat said that this unique place where the battery is that it is an integrated device, rather than a combination of several components.

The researchers believe that the future of this battery can be combined with solar cells to generate solar energy to prepare for contingencies electrical stored. You can even put the battery upgrade, made of motor-home form, if necessary, to reserve the necessary driving force and motivation to offer.

Although these foldable battery to people who are looking for a new power source provides a guideline, but some experts pointed out that, since carbon nanotubes are very expensive, new battery market outlook is to be studied.

Technical defects on the battery

Last year in August, Dell recalled 4.6 million Sony laptop batteries produced events have triggered wave of laptop battery recall. 3-month period, Dell, Apple, Lenovo, Fujitsu and other laptop manufacturers have recalled a number of Sony’s lithium-ion battery, the number of recalls has reached a total of 9.6 million, Sony Corporation be held responsible for the loss of nearly 430 million U.S. dollars .

In fact, several years ago, Li Ion battery safety issues had already begun to expose. 2001, have been available to foreign media reports that Japan’s second largest telecoms operator, KDDI said the company provides users with Sony mobile phone battery quality problems may exist, so it would recall 560,000 of such batteries, free of charge for users to replace.

After the recall of more incidents being reported. Including the 2004 recall of Verizon Wireless cell phone manufacturers 50000 LG brand cell phone batteries, because these batteries may be in the charge when the user burns caused by high temperature; the same year, for the same problem, Kyocera cell phone manufacturer announced Zhao back to 140,000 Kyocera 7135 smart phone to use batteries; 2006 electronics company NTT DoCoMo to recall more than 130 million pieces in May 2006 before the sales made by Sanyo D06 series batteries, Sanyo suffer losses of up to 17 million U.S. dollars.

In China, in 2006, according to SAIC’s briefing, Scud SL-X108A model mobile phone Li-ion batteries in test samples, it was found at 20 degrees Celsius discharge performance of product failure. Scud’s subjects, after an emergency recall of batches of a total of 582 mobile phone batteries.

Losses from the recall of view, alone, Sony, Panasonic, Sanyo and other three companies accumulated losses reached about 500 million U.S. dollars. This is what the three companies of the three world’s largest manufacturer of lithium batteries.

Accompanied by “frequent” large-scale recall of events, electronic products has basically become the mainstream of energy lithium batteries, on its technical defects, and security design premature conclusions also on the rise. As the Li-ion technology is now widely used in mobile phones, laptop computers and other consumer electronics and electric bicycles, automobiles and other modes of transport, and engineering equipment as well as medical equipment field, if the existence of hidden dangers lithium technology, then the impact will be across the whole human society. Therefore, Li-ion technology, the “crisis” theory is attractive to foreign concerns in the industry.

Silica Crisis

Silica Crisis

China Sunergy into Laptop battery solar cell production capacity litigation crisis can not be honored

Explosion of silicon solar energy industry is expected crisis casio battery.

Robust in much of the domestic solar energy industry, when suddenly heard discordant voices. Recently there have been media reports in May of this year has just been listed on Nasdaq and Power Electric (Nanjing) PV Co., Ltd. (CSUN), its stock price declines, U.S. investors send China Sunergy court.

China Sunergy face litigation in the U.S. behind China’s solar energy industry, the collective madness behind the enormous hidden – in the casio np-100 battery , casio np-20 battery industry revealed that more than half of solar cell production capacity (700 MW) due to shortage of silicon materials can not be honored, of raw materials in various solar energy companies suffered a widespread tight bottleneck.

Silicon material enterprise losses caused by high prices casio np-30 battery.

China Sunergy head of the Ting-show may not think of their own solar halo behind it so quickly cast a shadow. Two months after landing the Nasdaq, the stock losses due to the company announcement issued a slump. In two months, the company has suffered a U.S. investor litigation.

Some media reports with casio np-40 battery , casio np-l7 battery, September 7, an investor will China Sunergy to court on the grounds that China Sunergy in his book, there is the registration fraud and false statements, allegedly for its “measured by production capacity, is a a leading solar cell manufacturers, “was strong growth in sales revenue, and claimed that it had to ensure adequate supply of polysilicon. The report also said that China Sunergy and corporate executives, chairman of Ting-Xiu Jian-Hua Zhao, Qi Shao-feng, ZHANG Feng-ming and other individuals were named as defendants.

Proceedings from China Sunergy in a paper bulletin, China Sunergy August 24 this year, issued a public notice that its second-quarter net profit from last year’s 1.84 million U.S. dollars per share American Depositary Shares (ADS) 9-US points to a net loss of 3.54 million U.S. dollars a share, 14 cents. Shares fell from 16.7 U.S. dollars per share of around 5 U.S. dollars.

The insider to the “China Times” reporter revealed that in China Sunergy CFO Qishao peak after, CEO has also been left by the former vice president of NEC Corporation Allen took over (in Chinese known as Run-Sheng Wang dell inspiron 630m battery , dell inspiron 640m battery).

“’s Loss was largely due to the price of raw material procurement to be a little higher than other companies, while former members of the company is relatively overstaffed.” China Sunergy an anonymous person in charge of the World Solar Energy Conference held recently to accept the “China when the newspaper, “an interview, said:” Because we have no long-term and stable raw material suppliers. ”

As the main raw material for solar cells, polycrystalline silicon and monocrystalline silicon have been in short supply, the global solar energy companies are facing raw material shortage. The person in charge of raw materials in 2001 from 30 U.S. dollars / kg or so, rose to the current 300 U.S. dollars / kg. with dell inspiron 600m battery

, “The company’s cost pressures are significant, not only that, even if the price is so high it is difficult to buy raw materials. Because we are facing this problem.” The person in charge further stated.

700 MW of capacity can not be honored

“2006 China solar energy companies production capacity has reached 1,200 megawatts, but actual production is only 500 megawatts.” According to the disclosure of the above-mentioned person in charge of domestic solar cell production capacity, more than half of the reasons for the supply of silicon material in a shutdown state dell inspiron 500m battery , dell inspiron 510m battery.

Obviously not just China Sunergy encountered a bottleneck, solar companies are more or less the existence of such conditions. Even the first overseas listing of domestic solar PV companies – Suntech, he was unable to avoid.

“Suntech also true that there is problem of the shortage of silicon materials, because our capacity expansion more severe.” Suntech Marketing Director Wu Hongyan accept the “China Times” reporter, said: “But we have with other companies have not, we have a stable supplier dell inspiron 1520 battery. ”

It is understood that by the end of July this year, Suntech with the world’s ten largest suppliers of silicon, the United States New York Stock Exchange Main Board-listed MEMC signed a silicon supply contract. The two sides agreed, MEMC will be in the next 10 years, providing value to Suntech over 5 billion to 60 billion dollars in solar-grade silicon.

“Suntech’s total supply of silicon material, the long-term contracts accounted about 70% of the ratio of 30% of the other.” Wu Hongyan, said last year, Suntech’s output is 320 megawatts, ranked third in the world. Nevertheless, Suntech also failed to go full steam ahead last year, its actual production capacity dell inspiron 1521 battery has reached 480 MW.

By contrast, other companies do not have such good luck. Newspaper reporters in an interview with the World Solar Congress a number of solar companies, solar companies have said the pieces of silicon materials has been a headache.

“Silicon is expected to be around 2010 the problem can be resolved dell inspiron 1721 battery.” China Merchants Securities analyst Wang Sheng told the “China Times” reporter, “the face of huge market demand, many companies are actively to increase production.”

It is understood that this year, China has launched several companies threatened to polysilicon project. Daqo Group, Jiangsu, Sichuan, Tong Wei Group, Shaanxi Nonferrous Metal Group dell inspiron 6400 battery , Jiang Xi Sewei LDK will be launched thousands of tons of the size of polysilicon, particularly among the most eye-catching Jiang Xi Sewei LDK. The company said it will invest 12 billion yuan to develop 15 thousand tons polysilicon project.

“Today’s technology dell inspiron 1720 battery , primarily in the hands of Europe and the United States, China has yet to master the polysilicon production technology.” Wang Sheng said, “Although part of the silicon material to produce a little polysilicon manufacturers, but the amount is very small. They mainly use Russian technology, but the Russian technology and techniques vary widely in Europe and America. ”

“Once the technical success, raw material problems will get through.” China Sunergy person in charge of the case of the above-mentioned prospects of China’s solar energy dell inspiron 6000 battery business development prospects.

MP3 and AA batteries

MP3 and AA batteries

Long Play AA batteries MP3 MM more worry dell inspiron e1405 battery

MP3 is now more and more slender body, looks more and more-hyun, to save volume and MM had the money to buy batteries, most have built-in rechargeable battery. This is of course brings convenient, but some of MP3 playback time is not flattered by the Tingzhaotingzhao no electricity, and have to wait for it to re-charge the wires can be used, if the outside is even more anxious dell inspiron e1505 battery, because can not buy Ordinary batteries emergency, can only watch helplessly lying there, his love of machines, in an agitated not get into the music soothing. Moreover, the built-in rechargeable lithium battery life is limited, once it is aging, MM who love life also come to an end machines dell inspiron e1705 battery.

Brand-name mobile phone dell inspiron mini9 battery explosion caused a fire in people’s homes

Yesterday morning, who lives in Xinxiang City, residents of the peaceful road of a sudden the fire at home, and afterwards by the fire investigation found that fire is a rechargeable cell phone battery explosion is caused.

Yesterday, 10:25, Xinxiang City Fire brigade officers and men of Red Flag After receiving the alarm, rushed to the central district of the peace on the road dell inspiron 9400 battery. They are on the scene saw the head of household Li Fei (a pseudonym) has put the fire out using dry powder fire extinguishers, foam inside the living room sofa cushions have been burned rotten wood was burned charred sofa-like.

Fire officers and soldiers at the scene after careful inspection and found that the wall opposite the sofa, there is a broken cell phone batteries are rechargeable, socket surrounded by a black mark on the wall, the dell inspiron 9300 battery had been signs of an explosion.

According to Li Fei introduction, at 10 o’clock, he was the bedroom to sleep, vaguely heard in the living room with “crackling” sound. He went to the living room, we saw positive charge mobile phone batteries have been broken, the sofa has also been on fire, he quickly picked up the family-owned dry powder fire extinguishers put the fire out. Li Fei said the exploding dell inspiron 8600 battery , dell inspiron 8600m battery cell phone batteries that he spent more than 20 yuan in the market to buy a brand-name goods.

Konka Science and Technology Award

Konka Science and Technology Award

Konka drafting canon eos 450d battery grip a unified interface standard mobile phone charger by Science and Technology Award

January 23 message, Konka has announced that its junction with the Telecommunications Research Institute and the Ministry of Information Industry jointly drafted to complete the “mobile phones and chargers and interface technical requirements and test methods”, was awarded the China Communications Standards Association, was awarded the ” Science and Technology Award “second-class prize, Konka Communication Technology Co., Ltd. General Manager Li Hongtao, development engineer with canon eos 500d battery grip Du Yong as the project’s main person in charge, but also were given” Science and Technology Award “recognition.

It is reported that “mobile phones and chargers and interface technical requirements and test methods” as the industry standard, since its inception, has been encountered Laptop battery: on the one hand the full support of the domestic consumer market, the other is the foreign branded mobile phones disregard for the collective enterprise. However, in order to Konka etc., backed by the representative of the national brands, in June 2007 the State in the communications industry has begun to enforce the standards. After the implementation of standards, universal charger will be taken to a USB data cable plus a charger with a USB port in the form of female seat, and a final settlement over the years is not compatible mobile phone fujitsu lifebook b6210 battery charger problem.

It is understood that at present China has 14 companies produce 15 kinds of models of a unified interface to mobile phone charger for product certification and the adoption of uniform standards of material savings, the annual saving 20 billion yuan.

With the acceleration of cell phone fujitsu lifebook b6220 battery replacement, cell phone charger in terms of consumers and manufacturers, are a huge waste of resources, from the perspective of social resources, the harmonization of standards would significantly reduce the number of family-owned charger and will also increase in the full utilization of the product to avoid duplication and waste of resources. China, as a large country with 1.3 billion population, the per capita share of resources in the world, it is the end of any small savings is multiplied by 1.3 billion will be turned into a huge number, this is the award-winning unified standard mobile phone fujitsu fpcbp152 charger really all about.