What is a rechargeable battery and what is the symbol of a rechargeable battery?

The charging battery should be labeled "RECHARGEABLEBATTERY", and rechargeable batteries tend to indicate the battery capacity, such as 1600 mAh, 1600 mAh. There'll be a sign of rechargeable battery types, such as Ni MH (Ni-Mh), Ni - Cd (nickel cadmium). At present, there are five categories: nickel cadmium, nickel metal hydride, lithium ion, lead and lithium iron.

Such as reading, warning: battery may explode or leak if recharged or disposed of in fire. = warning: if the charging or into the fire, the battery may explode or leakage, this is not a rechargeable battery

Batteries will be written

If it is above the rechargeable batteries will write note 1: please don't put in batteries, do not short circuit, disassemble.2: standard charge how many hours, quick charge how many hours. Or use 3: charge, please check the electrode position correctly, avoid to charge or short circuit.

If non rechargeable batteries, please do not send the battery will be the first to write...

This is how to identify

Rechargeable battery materials

Lead-acid battery active material is lead dioxide on the positive plate, plate on the active substances for cavernous pure lead, to a certain concentration of sulphuric acid electrolyte solution, plate between the electromotive force is about 2 v.

Nickel cadmium battery is plate on the active content of nickel oxide powder, the active material on the negative plate for cadmium oxide powder, active material wrapped in perforated steel belt, respectively after extrusion forming becomes a positive and negative plate of the battery. Usually use potassium hydroxide electrolyte solution. The open circuit voltage of 1.2 V battery.

Nickel hydrogen battery positive plate materials are for nickel oxide powder, negative plate material for hydrogen absorbing alloy, electrolytic liquid hydrogen potassium hydroxide solution. The open circuit voltage of 1.2 V battery. Lithium ion batteriesLiCoO2 composite metal oxide is formed on aluminum anode, carbon compounds in the formation of copper cathode with lithium, plate with sub-micron microporous polyolefin film separator, the electrolyte for organic solvents. The open circuit voltage is 3.6 V.

Li-ion polymer battery is the improved type lithium ion battery, no battery, switch to polymer electrolyte, stable than ion battery, open circuit voltage of 3.6 V.

Commonly used parameters

How many power battery capacity on behalf of the battery can hold, we see on the outer packing of the battery number is usually means the battery capacity. With the unit or mAh said Ann. It is a composite unit, made up of current unit and time unit product, on behalf of the battery at a constant power flow under the continuous discharge capacity. Section 200 ma current discharge is charged battery can last 10 hours, multiply current and time together we can get this battery capacity is 2000 ma. H.If use 400 ma discharge, it is the time available for 5 hours.

Energy density, which was embodied in a unit volume or weight of electricity capacity, for the same power requirements, high energy density of battery, can be smaller volume, weight can be lighter.

Current C: refers to the one hour will be full of battery discharge is completed, or will run out of battery is full of current size. When in fact it is the capacity of the numerical size.1800 ma. The capacity of the battery, C current is 1800 ma.2000 ma. The capacity of the battery, C current is 2000 ma.

Potential difference between the open circuit voltage: refers to the battery at the poles.

Memory effect: the new battery, the electrode material of tiny grains, can obtain the biggest electrode surface area. By using crystal cell contents, crystal is changed, after the formation of grain, also known as (passive), reduced the available area of electrode, and raised grain increase self-discharge, would be to lower battery capacity, damage performance. This is the memory effect. Memory effect occurs because the battery is the cause of repeated partial charge and discharge caused by incomplete.

Self-discharge rate: after charging the battery, even in the case of not to use, also will gradually lose electricity, generally the higher the temperature, self-discharge, the more significant.

Disposable batteries commonly known as "disposable" battery, power after running out of because they can't charge to use, can only be thrown away. Common disposable batteries include alkaline manganese batteries, zinc manganese battery, The lithium battery, silver zinc batteries, zinc air battery, zinc, mercury and magnesium, manganese battery.

Rechargeable battery according to the difference of the material and craft, common are lead-acid batteries, nickel-cadmium batteries, nickel iron battery, nickel metal hydride batteries, lithium ion batteries. Its advantages are long cycle life, they can fully charge and discharge more than 200 times, some of the rechargeable battery load force is higher than most of the disposable batteries. Ordinary nickel cadmium, nickel metal hydride batteries used in special memory effect, and cause the inconvenience of use, often cause early failure.

Disposable batteries can use rechargeable battery charger, repeated use.

Ordinary 1, 2, 3, 5, 7 monomer battery nominal voltage is 1.5 V, and nickel metal hydride, nickel cadmium rechargeable batteries nominal voltage is 1.2 V, lithium-ion rechargeable batteries nominal voltage is 3.7 V, lead-acid battery is 12 V.

Maintenance

Rechargeable battery charging problem has always been the focus of people care about, correct good charging method can ensure the battery life. Recommended by the rechargeable battery charging method is varied, different methods of charging line have different requirements for charger, nature affect the cost.

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