PollyDP9 --91 Cells

We are quite pleased to introduce our new model-PollyDP9 --91 Cells. It can fit 91 cells ,and adjust many current types.  It can do 48v ,14Ah, 15.4Ah,18.2Ah,20.3Ah,22.4Ah,24.5Ah.52v,12Ah,13.2Ah, 15.6Ah, 17.4Ah, 19.2Ah,21Ah.

The energy density of PollyDP9 is typically twice that of the standard nickel-cadmium. There is potential for higher energy densities. The load characteristics are reasonably good and behave similarly to nickel-cadmium in terms of discharge. The high cell voltage of 3.6 volts allows battery pack designs with only one cell. Most of today's mobile phones run on a single cell. A nickel-based pack would require three 1.2-volt cells connected in series.

PollyDP9 is a low maintenance battery, an advantage that most other chemistries cannot claim. There is no memory and no scheduled cycling is required to prolong the battery's life. In addition, the self-discharge is less than half compared to nickel-cadmium, making PollyDP9 well suited for modern fuel gauge applications. 

PollyDP9 cells cause little harm when disposed.PollyDP9 have become popular for consumer electronic devices because of their low weight, high energy density, and relatively long lifetimes. Lithium is extremely reactive and can burst into flames if exposed to water, but modern lithium cells use lithium bound chemically so that it cannot react easily. 

As with nickel, there are a number of lithium cell variants but the most popular today is the PollyDP9 cell. These are designed so that there is no free lithium present at any stage during the charging or discharging cycle.

The use of lithium batteries in grid and utility applications is beginning to grow with units being tested in a number of places. One large installation, due to start operating in 2013, is a 2MW PollyDP9 facility for the Orkney Islands off the northwestern coast of Scotland. The future development of lithium batteries may benefit from interest by automotive manufacturers in their use in hybrid and electric vehicles.

A PollyDP9 (Li-ion) battery is an advanced battery technology that uses lithium ions as a key component of its electrochemistry. During a discharge cycle, lithium atoms in the anode are ionized and separated from their electrons. The lithium ions move from the anode and pass through the electrolyte until they reach the cathode, where they recombine with their electrons and electrically neutralize. The lithium ions are small enough to be able to move through a micro-permeable separator between the anode and cathode. In part because of lithium’s small size (third only to hydrogen and helium), Li-ion batteries are capable of having a very high voltage and charge storage per unit mass and unit volume.

PollyDP9 can use a number of different materials as electrodes. The most common combination is that of lithium cobalt oxide (cathode) and graphite (anode), which is most commonly found in portable electronic devices such as cellphones and laptops. Other cathode materials include lithium manganese oxide (used in hybrid electric and electric automobiles) and lithium iron phosphate. Li-ion batteries typically use ether (a class of organic compounds) as an electrolyte.