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

Technical parameters Ni-Cd battery Ni-MH battery Lithium Ion Battery

Operating Voltage (V) 1.2 1.2 3.6
Weight specific energy (Wh / Kg) 50 65 105-140
Volume specific energy (Wh / l) 150 200 300
Discharge life (times) 5005001000
Self-discharge rate (% / month) 25-3030-356-9
Whether there have no memory effect
There are no non-pollution

(Note: The charging rate are 1C)

5, lithium-ion battery works
      We already know that the lithium ion battery lithium cobalt oxide cathode materials, anode carbon. The working principle of lithium-ion battery charge and discharge means of its principle. When charging the battery, battery lithium ion cathode have generated, the generated ion movement through the electrolyte to the cathode. As the carbon negative electrode were layered structure, it has many pores, to the negative lithium ion on the embedded carbon in the porous layer,Gateway m505 laptop Battery the more embedded lithium-ion, the higher the charge capacity. Similarly, when the discharge of the battery (ie, the process we use the battery), embedded in the negative ion of carbon layer prolapse, but also movement back to positive. Back to the cathode of lithium-ion more higher discharge capacity. We usually refer to the battery capacity refers to the discharge capacity.
Not difficult to see, in the lithium-ion battery charge and discharge process, lithium ions in the anode from the cathode → → positive state of motion. If we liken to a lithium-ion battery rocking chair, rocking chair both ends of the bipolar battery, and lithium ion as excellent athlete, running back and forth in rocking chair at both ends. Therefore, the experts gave the lithium-ion battery the name of a lovely rocking chair battery.

6,Gateway 8msbg Battery lithium-ion battery assembly process
     Lithium-ion battery technology is very strict and complex, here only briefly a few of the major processes.
(1) Pulp
With special solvents and adhesives were positive with the powder mixture of negative active material, even after high-speed mixing, the paste made of the positive and negative material.
(2) coating
Will be made of slurry evenly coated the surface of the metal foil, drying, films were made of positive and negative pole.
(3) assembly
       By the positive electrode - Diaphragm - negative plate - put away the order from top to bottom membrane, cells made by winding very core, and then by injecting electrolyte, sealing and other process, to complete the battery assembly process, the system into a finished battery.
(4) into

       With a dedicated battery charging and discharging equipment,Toshiba pa3421u-1brs Battery battery charging and discharging of the finished product testing for each battery are only tested to screen out qualified finished battery, to be shipped.