Posts in 2010 Mar 02

Battery introduction

2010-03-01 19:57:42

Chemical batteries go through the electrochemical reaction, the positive, the negative electrode active material of the chemical energy go into a class of electrical devices. After long-term research, development, ushered in a wide variety of chemical inspiron 1520 battery , widely used in the situation. As large as a building can only accommodate a lot, the great device, small enough to count the species in millimeters. Now many electrochemical scientists focus their interest as a chemical battery powered electric car field.


  1. Dry and liquid battery

    2. The distinction between dry and liquid bp-911 battery  is limited to the period of early cell development. The first battery from the glass container is filled with electrolyte and two electrodes. Was launched in order to paste electrolyte-based batteries, also known as dry batteries.

    There are still "liquid" batteries. Size is generally a very large variety. Such as those used as an uninterruptible power supply in large stationary lead-acid batteries or solar cells supporting the use of lead-acid batteries. For mobile devices, some using a full-sealed, maintenance-free lead-acid batteries, these inspiron 6000 battery have been used successfully for many years in which the electrolyte sulfuric acid is fixed by the silica gel or glass fiber separator suction pay.

  2. Disposable batteries and rechargeable batteries

    3. Disposable batteries commonly are known as "disposable" batteries, because their power runs out, you can not recharge using only discarded. Common disposable batteries, including alkaline manganese batteries, zinc-manganese batteries, lithium thinkpad x60 akku , zinc batteries, zinc air batteries, zinc-mercury batteries, mercury batteries, battery and magnesium hydroxide, manganese batteries.

    Rechargeable battery are divided into lead-acid batteries, nickel-cadmium inspiron 710m battery batteries, nickel-iron batteries, nickel-metal hydride batteries, lithium-ion battery,according to production materials and processes on different common . The advantage is a long cycle life, which can be more than 200 full charge and discharge, and some rechargeable batteries power the load higher than most of the disposable batteries. Ordinary Ni-Cd, Ni-MH battery, the unique memory effect, causing inconvenience to use, often cause early failure.

    Theory of battery charge time

    The theory of the battery charge time: battery charger power divided by the output current.

    For example: inspiron e1505 battery with 800MAH , the charger output current 500MA ,then charging time is equivalent to 800MAH/500MA = 1.6 hours, when the charger shows charging is completed, preferably about half an hour or so should be given to the battery the complement of power-up time.

    Fuel Cell

    Fuel cell is a fuel's chemical energy through electrochemical reaction into electrical energy directly to the device is the use of hydrogen fuel cell the anode is carried out by oxidation of hydrogen oxidation of hydrogen ions, while the oxygen reduction reaction carried out at the cathode, and coming from the anode generates hydrogen ions with the water. Oxidation-reduction reaction process can generate electricity. Fuel cell technology, including the existence, in alkaline fuel latitude d600 battery (AFC), phosphoric acid fuel cell (PAFC), proton exchange membrane fuel cell (PEMFC), molten carbonate fuel cell (MCFC), solid oxide fuel cell (SOFC), as well as the direct methanol fuel cell (DMFC), etc., of which the use of methanol oxidation as a positive response to fuel cell technology, but is optimistic about the industry and positive developments.

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Car lithium battery will become the global R & D hot spots

2010-03-01 20:04:14

As the environment-friendly vehicles on a global scale are sought after, hybrid and electric cars sells the next few years, the automotive latitude d830 battery market is expanding rapidly. "It is envisaged that by 2014, the market size will rapidly expand to 2.25 trillion yen (about 24.8 billion U.S. dollars), is about 215 times in 2008." This is a professional market research agency Fuji, Japan Economic Research Institute has recently come to statistics.

Compared with traditional vehicles, new energy vehicle technology gap with foreign countries do not, there is the possibility of overtaking bend, more contribute to the relevant enterprises to increase investment in new energy vehicles optimism. Among them, car battery power --- lithium-ion Samsung sb-l110 is a major R & D related to the preferred target.

It is understood that the current hybrid cars use nickel-metal hydride satellite a200 akku technology major, but the nickel-metal hydride battery a number of technical properties such as energy density, charge and discharge speed is close to theoretical limits. The lithium battery has energy density, high-capacity, no memory, etc., are various car makers and battery manufacturers unanimous endorsement of the current national focus on R & D is the lithium-ion batteries.

According to the different cathode materials, lithium li-12b battery are lithium cobalt oxide, lithium manganese oxide, ternary materials, and four kinds of lithium iron phosphate. Lithium iron phosphate which is the best hybrid vehicle using lithium cathode materials. At present, China's car prices introduced models in purely electric vehicles, power batteries are lithium batteries, Chery, BYD are using lithium iron phosphate. At present, China mainly depend on production of batteries and equipment imports expensive, which is our vehicle development is very unfavorable power batteries, power batteries in mass production, it should be of advanced automation equipment, research top priority. In addition, most of the enterprises of China's independent power battery research and development, its funding is limited, only the basic problems to solve power en-el4 battery technology is difficult to further advance.

The current hybrid cars use nickel-metal hydride battery technology major, but the nickel-metal hydride battery a number of technical properties such as energy density, charge and discharge speed is close to theoretical limits. The lithiumbattery has energy density, high-capacity, no memory, etc., are various car makers and battery manufacturers unanimous endorsement of the current national focus on R & D is the lithium-ion batteries. With data that in 2012 lithium np-40 battery market capacity will reach 150 billion yuan, the global market scale will reach several hundred billion dollars.

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The structure and characteristics of zinc-manganese batteries

2010-03-01 20:09:02

  1. Cylindrical zinc-manganese batteries

    2. Cylindrical-type zinc-manganese np-100 battery on the isolation of different materials can be divided into cardboard paste-type cells and batteries. Paste-type zinc-manganese batteries or regular batteries, cardboard battery caused by differences in the composition of their formulations of different electrical properties, is divided into C-(or ammonium type) cardboard batteries (also known as high-capacity battery), and P-type (or zinc type) cardboard batteries (also known as high-power batteries).


    Paste-type battery that is the traditional zinc-manganese dry batteries for nb-3l, the cathode material with a low activity of natural manganese dioxide, isolation material is a starch and flour paste isolation layer, the electrolyte is mainly H4CL ammonium chloride, zinc chloride aqueous solution, the negative electrode is zinc cylinder, the general poor performance of its discharge capacity lower end of battery life easy to leakage, but the price is cheaper, more suitable for small currents and intermittent discharge of occasions, such as for radio, flashlight, etc.


    C-board battery is the nb-5l battery in the paste on the basis of layers of paper pulp instead of using glue paper, not only positive increased by 30% of filler content, but with 30-70% of the highly active manganese instead of a natural manganese, so capacity will be increased the use of the scope could be broadened and used for low current discharge occasions, such as for watches and clocks, remote controls, radios, flashlights and other occasions.


    P-board Canon lp-e5 battery using zinc chloride-based electrolyte, cathode material used in all high activity of manganese powder, such as manganese, active manganese and its leak-proof performance, much higher than the paste-type and C-type batteries, used for high-current continuous discharge occasions, such as for cameras, flash setting, tape recorders, shavers, electric toys.


  2. Cylindrical Alkaline Battery

    3. Cylindrical alkaline zinc-manganese np-qm91 battery , commonly known as alkaline batteries, zinc manganese battery series, the performance is the best variety. The shell has generally 08F nickel-plated steel is made by cold pressing at the same time double as cathode current collector, electrolytic manganese dioxide as cathode material pressed into the ring close to the cylinder wall to ensure good contact, the negative use of powder made of zinc tablets, and pastes, are in the middle of the battery, during the negative current collector inserted (usually negative Brass Nails), set the bottom of the fluid and negative connected to the battery for vr-blz7 inside the cathode with the divide between the (separation layer) separated from its external use nylon or polypropylene ring off, while achieving a sealed battery, the battery outside the battery is almost the same with the general.


    Although the cylindrical alkaline zinc-manganese Sony np-f330 battery nominal voltage of the battery the same as the ordinary, are 1.5 volts, but because the structure of alkaline batteries used in ordinary batteries opposite electrode structure, increases the relative size between the positive and negative electrodes, and the with high electrical conductivity of potassium hydroxide solution replaces the ammonium chloride, zinc chloride solution, zinc anode is also changed by the sheet into a grainy, increase the reaction area of the negative electrode, combined with use of a high-performance manganese powder, so electric performance can be greatly improved, and in general, the same type of alkaline manganese batteries are ordinary battery capacity and discharge time of 3-7 times greater gap between the two low-temperature properties, alkali-manganese battery for Toshiba pa3534u-1brs is more suitable for large-current continuous discharge and demanding The operating voltage of the electricity occasions, especially for camera, flash set, razor, conductive toys, CD machine, high-power remote control and so on.

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