subject: nickel cadmium batteries can withstand overcharge [print this page] nickel cadmium batteries can withstand overcharge
First, the nickel-cadmium batteries (nickel-cadmiun batteries) features
1. Nickel-cadmium batteries can be reused in more than 500 charge and discharge, very economy;
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2. Resistance is small, for large current discharge, discharge voltage when it changes little, as the DC power supply is an excellent quality of the battery;
3. Because the use of fully enclosed, so there is no electrolyte leakage phenomenon, but also completely without added electrolyte
4. In contrast with other types of batteries, nickel cadmium batteries can withstand overcharge, or let go of power, simple operation;
5. For a long time will not be placed under the performance deterioration, when is charging is completed, you can restore the original properties
[Nickel-cadmium battery]
Nickel-cadmium batteries
Nickel-cadmium batteries (Ni-Cd, Nickel-Cadmiun Batteries, Ni-Cd Rechargeable Battery) was first used in mobile phones, batteries and other equipment superfamily type, it has good high-current discharge characteristics, resistance to charging and discharging capability, maintenance simple, general discharge using the following reaction:
Cd +2 NiO (OH) +2 H2O = 2Ni (OH) 2 + Cd (OH) 2
Charging the opposite reaction.
Nickel-cadmium battery of the most fatal flaw is that in the charge-discharge process if not handled properly, there will be serious "memory effect", making the service life shortened. The so-called "memory effect" is the battery before charging, the battery power is not fully exhausted, the passage of time will result in reduced battery capacity, the battery during charge and discharge (discharge more obvious), will generate little in the battery plates small bubbles, these bubbles over time to reduce the size of the battery plates are also indirectly affect the capacity of the battery. Of course, we can control charge and discharge reasonable way to reduce the "memory effect." In addition, cadmium is toxic and therefore not conducive to nickel-cadmium battery protection of ecological environment. Many shortcomings make nickel-cadmium batteries have basically eliminated the digital device battery applications.
[Nickel-cadmium battery]
Nickel-cadmium batteries
Nickel-cadmium batteries (Ni-Cd, Nickel-Cadmiun Batteries, Ni-Cd Rechargeable Battery) was first used in mobile phones, batteries and other equipment superfamily type, it has good high-current discharge characteristics, resistance to charging and discharging capability, maintenance simple, general discharge using the following reaction:
Cd +2 NiO (OH) +2 H2O = 2Ni (OH) 2 + Cd (OH) 2
Charging the opposite reaction.
Nickel-cadmium battery of the most fatal flaw is that in the charge-discharge process if not handled properly, there will be serious "memory effect", making the service life shortened. The so-called "memory effect" is the battery before charging, the battery power is not fully exhausted, the passage of time will result in reduced battery capacity, the battery during charge and discharge (discharge more obvious), will generate little in the battery plates small bubbles, these bubbles over time to reduce the size of the battery plates are also indirectly affect the capacity of the battery. Of course, we can control charge and discharge reasonable way to reduce the "memory effect." In addition, cadmium is toxic and therefore not conducive to nickel-cadmium battery protection of ecological environment. Many shortcomings make nickel-cadmium batteries have basically eliminated the digital device battery applications.
