myecpro-laptop battery

By University Materials Research Institute Hill research team led by Professor Arthur transform one into the glass industry has been widely used, known as method of magnetron sputtering (magnetron sputter) material and deposition technology to create a selenide copper-indium (CIS) selenide and copper indium gallium (CIGS) cells and thin-film solar.

The group received an additional year of education fund Joule Center to continue with North West manufacturer General vacuum research and development.

Note Professor Hill copper-selenide Indium (CIS) selenide and copper indium gallium (CIGS) solar cells based on silicon-based solar cells an attractive alternative because they require less equipment manufacturing and absorbed solar energy and resist good radiation characteristics.

However, manufacturing past, complex and expensive process hindered the thin film solar cells be used.

To make the battery in copper, indium, gallium and selenium ratio is correct, need to be very precise process. In the manufacture of thin film out, these proportions may change, affecting the ability to absorb energy. The method of magnetron sputtering enables the proportion of different materials, more reliable.

The manufacturing technology has been widely used in the film applied to glass, using the vacuum method and the magnetic field to ensure that the film material is applied evenly on the ground.

Professor Hill is currently carried out by application of thin film solar panel research and development, although only the laboratory scale, but the manufacturing technology has been widely used in practice is the maker of glass thin film solar cells used for be relatively easy and at low cost.

Battery makers, although the view was expressed that the car battery is not much profit, but long term, vehicle batteries become a huge market there are growth possibilities. This is because, if we can develop a low cost and excellent performance of the batteries, not only to hybrid and electric cars, and even living in between the two plug-in hybrids (using the home power charging, the battery runs out when the engine switch The hybrid drive), as well as hybrid fuel cell vehicle specifications, the amount of production will be boosted. Counter is to say, if the price and performance of lithium batteries is also as it is now, then the production of environmentally friendly cars can only be limited.

METI foresaw this, and was released in August last year, automotive batteries for future development goals. Target is divided into three stages. First of all, the first stage “to improve period” goal is by 2010 half the cost of lithium batteries (performance the same). Its implementation is the main industry, the establishment of the above-mentioned trends, such as automotive battery manufacturing companies all belong to this phase.

Stage 2 as an “advanced period”, will be in 2015 as the goal, so that the weight of the energy density of lithium batteries to 1.5 times the cost down to 1 / 7 (the cost of performance of 10 times). For example, plug-in hybrid electric vehicle mode, driving 150km, the need to be equipped 4kWh of rechargeable batteries, if you use the current lithium batteries, the battery is only necessary to ¥ 800,000. And if these goals are achieved, the battery would cost to 12 million yen, the weight of only the current 2 / 3.

Phase 3 is to extend beyond 2030, long-term goal is to make his request to 7 times the energy density, the cost to 1 / 40 (cost performance of 280 times). In order for electric vehicles and plug-in hybrids a large number of popular, need to develop the performance of the battery. Therefore, at this stage can be called a “reform period”, during this period the need for new principles of battery development, asked the University and research institutions to conduct long-term basic research.

The development objective is only produced in Japan by the province, “the basis for a new generation of cars - battery technology research Council” (Chair: Keio University, Professor, Graduate School Valley long) report “to a new generation of vehicle batteries’s recommendations” involved in the formal development plan has not yet implemented. While it is not know in what way the future to start R & D projects, but the second phase and third phase of objectives is still a huge leap worthy of attention. Prior to the second phase of industrial development issues, while the third phase of the “seven times the energy density of the development of new batteries” is entirely future results are not yet know how basic science questions. In this regard, at least cell research, experts believe that the target would disdain the development of purely “a layman’s absurd idea.”

But I made a leap Daoshi targets of the study would have a good impression. Now, to account for 20% of human energy consumption of vehicles to develop environmental protection measures is the world’s critical issues. In particular, the automotive industry will remain the pillars of economic development in Japan, saying that the challenges have to be this difficult issue. In my opinion, do not set such a high degree of difficulty, and does not deserve a state-led development program.

I worry about is that by the time the project is begun, subject to the views of industry representatives and experts strongly influenced by the target eventually be re-set to be achievable range. Admittedly, before the Japanese state-level development projects there is no such tendency. In my opinion, these use taxes for state-level development projects, the Government should look at the basis of society as a whole to develop clear goals, implementers should be afraid of failure, brave the challenges and development of new technologies. If you can not only improve the existing technology, but with a leap of new technologies to produce environmentally friendly cars dominating the world, it will be a very good thing.

      Earlier, the laptop battery door “events has created a hubbub. In August 2006, they heard a certain brand of battery problems Mobile prone to fire and burn the whole laptop in May. August 14, 2006, order of brand recall has been issued in the United States announced 410 recalls notebook batteries May cause fire, saying production of defective battery supplier.

      Subsequently, the recognized provider of the statement and said the defective battery mainly because of the production process contains a mixture of small metal fragments, these fragments led to the battery charging system and computer contacts short-circuited, causing overheating or explosion.

      Subsequently, the major notebook manufacturers have branded the order of defective laptop battery recall was issued, and made for the issue of compensation for consumers.

      “Battery Door” event to allow consumers to re-understand battery - if quality problems exist laptop battery, are likely to burn Laptop Notebook, if you use the laptop battery of Originally, the battery can lead to compensation.

      For consumers, safety is always the largest, followed by unexpected is the product when the conditions of remuneration. If I use the laptop battery original, then either burn the battery alone, or lead acid battery in the laptop everything was totally destroyed, I can get to the laptop manufacturer for compensation . However, if I use a portable battery third party, then when the accident occurred, it is difficult to find a fairly clear compensation.

      Thus, for the third battery laptop, how to ensure the safety of these products, how in the case of an accident to provide a reasonable return is absolutely the biggest concern for consumers.

      ● a comprehensive third-party laptop battery:

      Die variety of laptops, notebook batteries die naturally varied. Only from our recent evaluation of prototype laptop off, you can select different styles of the laptop battery dies.

      If you want to use third party laptop battery, and I want to become bigger and stronger, of course, can not rely on a single species, at least to reach a “coverage of all laptops popular” level. However, Development of laptop battery dies, it takes a lot of money, which is “Why longstanding third party laptop battery has not been a” main reason.

      Thus, for the third battery laptop, how to ensure the completeness of the battery dies, but also a major concern for consumers.

      ● the need for a battery of third party mobile:

      The last problem is the need for battery third party mobile. Quite frankly, it’s - and not only the original laptop battery with high safety, but also the unexpected when it comes to compensation, and there is no type of mold failure “problem, then why do we need to purchase third-party laptop battery it?

      Currently, laptop batteries at the origin generally have higher prices, plus a few brand cell phones other than the price of 300 yuan, the price of most laptop batteries marks have been about 600 yuan, and some laptop battery brand even more than the price of 1000 yuan.

      We specifically with this problem in the company conducted a survey of my colleagues are basically the answer: “original price laptop battery is too high, to increase endurance time to buy a battery too much to ask if the price is cheaper, then I would consider buying a few pieces to prepare for any eventuality.

      We see only the price of the third party laptop battery cheap enough to arouse the desire of consumers to buy, what is decided the key to successful problem-thirds of the laptop battery. 

      ● Abstract:

      Firstly, we must recognize the value of the third mobile batteries, laptop batteries because the initial price is too high. Secondly, we hope third party laptop battery to properly handle security, completeness and the need for these three issues. Finally, we would see a massive number of visitors to the third party for laptop battery.

Lithium-ion battery main components

(1) battery cover

(2) —- cathode active material for lithium cobalt oxide

(3) —- divide a special composite membrane

(4) —- cathode active material for carbon

(5) organic electrolyte

(6) Battery Shell

The advantages of lithium-ion dell laptop battery can

We have always said that the lithium-ion batteries are for the superiority of the traditional nickel-cadmium batteries (Ni / Cd) and nickel-metal hydride battery (Ni / MH) in terms of the. Then, lithium-ion battery good What went wrong?

(1) high voltage

(2) than the energy of large

(3) Long cycle life

(4) low self-discharge rate

(5) No memory effect

(6) non-polluting

The following is a nickel-cadmium, nickel hydrogen, lithium-ion battery performance comparison:

Technical parameters of Ni-Cd Battery Ni-MH inspiron 500m battery Lithium Ion Battery

Operating voltage (V) 1.21.23.6

Weight ratio of energy (Wh / Kg) 5065105-140

Volume ratio of energy (Wh / l) 150200300

Charge-discharge life (times) 5005001000

Self-discharge rate (% / month) 25-3030-356-9

Whether the memory effect has the availability of

Yes No Have non-polluting

(Note: The charging rate of 1C)

Lithium-ion battery Working Principle

Everyone already know that lithium-ion dell inspiron 510m battery cathode materials are lithium cobalt oxide, are carbon negative electrode.

Lithium-ion battery working principle refers to the principle of charging and discharging. When charging batteries, the batteries have a lithium-ion cathode generation, after generation of lithium-ion electrolyte to the anode exercise. As the carbon anode was layered structure, it has a lot of microporous, the arrival of Li-ion on the anode embedded in the porous carbon layer, the embedded lithium-ion more the higher the charge capacity.

Similarly, when the battery discharge (that is, we use the process of the battery), embedded in the carbon anode in lithium-ion layer extrusion, and sports back to cathode. Back to cathode of lithium-ion more higher discharge capacity. What we normally refer to the battery capacity is the discharge capacity.

Is not difficult to see, in the lithium-ion battery charge and discharge process, lithium-ion at the anode from the cathode → Sports → cathode status. If we take the lithium-ion battery Saying for a rocking chair, rocking chair at the two ends of the bipolar battery, and lithium-ion as the best athlete in the running back and forth at the two ends of a rocking chair. Therefore, the experts gave a lithium-ion inspiron 600m battery lovely name rocking chair batteries.

Lithium-ion battery assembly process

Lithium-ion battery technology is very stringent, complex and here only a brief one of several major processes.

(1) Pulping

Use of specialized solvents and adhesives in powder form with the negative electrode active material is mixed, with high-speed mixing evenly, the paste made of the positive and negative material.

(2) coating

Will be made from pulp evenly coating the surface of the metal foil and drying, respectively, a pole piece made of positive and negative.

(3) assembly

By cathode film - divide - negative film - diaphragm placed the order from top to bottom, the battery made by winding a very core, then injected into the electrolyte, sealing and other process, namely the completion of the battery assembly process, the system into a finished battery.

(4) into

With a dedicated battery charging and discharging equipment for finished battery charge and discharge test, for each battery are tested only selected qualified latitude d500 battery products to be manufactured.