Sunday, December 16, 2012

Powerful Gel Battery


Development of Gel Battery



At present, the gel category is a minority, making up less than 20 percent of makers’ output. This is because of 20 to 40 percent higher prices than AGM versions at the same capacity. Advantages in performance, however, are expected to boost the former technology’s share to about 30 percent in 2013.



Beside nonspillability, gel batteries have better resistance to vibration, shock and extreme changes in temperature. Compared with AGM with 200 to 600 cycles and a five- to 10-year life span, these can reach 800 to 1,200 cycles and 12 to 15 years. In terms of operating temperature, gel varieties work in -25 to 60 C, while AGM is in the -15 to 40 C ranges. The latter’s low internal resistance, however, makes it suitable for high-current and –power applications such as motive power battery.



Globally, the industry will grow by 2 to 5 percent in the years ahead, spurred by traditional bases in the transportation, telecom, electric power, medical, industrial, and aviation and navigation fields. Emerging “green” segments will provide new opportunities for the line.



Solar Gel Battery



What is Deep Cycle Gel Battery?



Deep cycle gel battery also works on the same principle of oxygen recombination but use a different method to achieve it. They use a composite separator composed of a glass mat bonded to a porous polyethylene or polyvinylchloride sheet. The batteries are filled with a thyrotrophic gel of silica mixed with sulfuric acid. When this is added to the battery it fills all of the available space and then sets to form a solid matrix. Because all the pores in the separator are filled there are no oxygen channels and in the early stages of its life the battery behaves in the same way as a flooded type with gas generation and water loss. This causes the gel to dry out, shrink and develop cracks which eventually form the channels for oxygen to migrate to the negative plate and be recombined.



Advantages and Disadvantages of Using Deep Cycle Gel Battery

Here are some of the advantages of using deep-cycle Gel batteries:

- Perform better than deep-cycle AGM batteries for systems that require regular deep discharge. (i.e. 80% DOD)

- Perform better than deep-cycle AGM batteries for low power applications.

Here are some disadvantages of using deep-cycle Gel batteries:

- More expensive than deep-cycle FLA or AGM batteries.

- Do not perform as well as deep-cycle FLA or AGM batteries in cold temperatures. (<40 degrees F)

- Do not perform as well as deep-cycle FLA or AGM batteries when they regularly reach a shallow depth of discharge. (i.e. 20% DOD)

- Higher self-discharge rate than deep-cycle AGM batteries.



www.everexceedcorp.com. EverExceed develop, design, and manufacture products to provide safe, reliable power solutions worldwide. EverExceed has operations on six continents including three manufacturing plants and two research & development centers, allowing our products be available and enjoy technical support all over the world.



The article is come from:http://www.mobilesaccessories.net/index.php/powerful-gel-battery.htm

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