The difference between lithium batteries and dry batteries

There are rechargeable battery (also called wet battery) and that cannot charge (also called dry cell). For example, AAA battery cannot be charged. It is known as the alkaline batteries. Lithium ion batteries are better. It has about 5 times better endurance than alkaline batteries, but the price is 5 times higher. Now Panasonic and the EU lithium-ion battery are popular AAA non rechargeable batteries. Rechargeable batteries are divided into nickel cadmium battery, nickel metal hydride battery and lithium ion rechargeable batteries. Lithium ion rechargeable battery is best. Nickel cadmium battery is usually AAA battery. It is not new battery and has been eliminated, but is also sold outside. Nickel metal hydride batteries are usually AAA battery, and now is the mainstream of rechargeable batteries with 5 to 2300 mAh to 2700 mAh for the mainstream. Lithium ion rechargeable batteries are usually the size of their own design. As to the life of rechargeable battery, lithium ion rechargeable battery is the best, then the nickel metal hydride, and then the nickel cadmium. The advantages of lithium ion is that it can keep the power in more than 90%, and then suddenly without electricity after the final power display with 5% electricity. And the power of Ni-Mh batteries is to go down all the way. First is 90%, then 80%, then 70%.The battery life cannot meet the high-end electronic products requirements, especially digital camera using flash light, which needs a long time to take one again, while lithium ion rechargeable batteries have no this problem. So if the manufacturers don't use AAA battery, they will basically design their own lithium-ion rechargeable batteries. You can buy nickel metal hydride rechargeable batteries for another choice, and then buy a good charger. You have better charging the battery after discharging, because it will extend the battery life. GP, EU, SONY Nickel metal hydride rechargeable batteries are good brand batteries, and Pinsheng homebred product is also pretty good. But the SONY charger is better, because of the discharge function.

Dry cell is a kind of voltaic cell, using some kind of absorber, such as wood chips or gelatin) make inclusions not paste spillover. The power of the commonly is used as a flashlight, lighting, radio, etc. Dry cell technology in China after years of development, its specific energy, cycle life, high and low temperature adaptability problems such as there has been a breakthrough.

Think tank research center of research data shows that at present our country is gradually narrowing the gap with international advanced technology, in part of the core technology has reached the international level, and increasingly into the international market.

Dry cell (Dry cell) is a kind of paste electrolyte to produce direct current (dc) chemical batteries (wet cell is for the use of liquid electrolyte chemical battery), roughly divided into two kinds, a battery and secondary battery is for common use of daily life, as well as the portable battery.it

Homemade in the laboratory to the battery

Homemade in the laboratory to the battery

Can be used in many electrical appliances.

Common dry cell of zinc manganese battery (or zinc carbon batteries, namely dry Leclanche cell).

Dry cell belongs to the chemical power of the battery, is a kind of disposable batteries. Because this kind of chemical power source device the flow of electrolyte is a kind of can't paste, it is called a dry cell, this is relative to a flow of electrolyte battery. Dry cell is not only applicable to the flashlight, transistor radio, tape recorder, camera, electronic clock, toys and so on, and also forspecial, scientific research, telecommunications, navigation,special, medicine, etc. In all areas of the national economy, is very good. Ordinary dry-cell batteries are mostly zinc manganese battery, the middle one is the anode carbon rod, a mixture of graphite and manganese dioxide of outsourcing, the outside is a layer of fibres. Online electrolyte with very thick paste, its composition is the ammonium chloride solution and starch, and small amounts of preservatives. The outermost layer is made of metal zinc skin tube, which is negative, the battery discharge is the ammonium chloride and zinc electrolytic reaction, release the charge by graphite conductive to the anode carbon, zinc electrolysis reaction is will release hydrogen, this gas is may increase the risk of battery internal resistance, and mixed with graphite manganese dioxide is used to absorb hydrogen. But if the work or the battery is too long, manganese dioxide is too late or have had no ability to absorb nearly saturated, the battery will be lost due to internal resistance is too large, the output current is too small. At the moment, if the battery heating, or place a period of time, its internal accumulation of hydrogen will heat release or slow release. Manganese dioxide by reduction to restore, also the battery was alive again!

Chemical equations as follows: zinc mno2 + 2 + 2 + nh4cl = ZnCl2 Mn2O3 nh3 + H2O + 2

Don't anatomical dry cell!!!!!Do not put it in the fire to burn or burn.

During the period of "11th five-year plan", China's dry cell rapidly expanding market scale, production fast growth at the rate of about 20% a year on average, the overall size has increased by 2 times, from about 70 million in 2005 KVAh rose to 2010 in 144.1668 million KVAh. In 2011, China's dry cell industry production scale has expanded, profits and sales profits have risen sharply, industry management benefit is better. Battery industry in China in 2011 the total assets of 88.091 billion yuan, up 39.35%;Achieve sales revenue of 96.515 billion yuan, up 32.40%;Total profit of 5.72 billion yuan, up 10.81% from a year earlier. At the same time, dry cell technology after years of development, its specific energy, cycle life, high and low temperature adaptability problems, there has been a breakthrough. At present our country is gradually narrowing the gap with international advanced technology, in part of the core technology has reached the international level, and increasingly into the international market.

One day in 1780, the Italian anatomist galvanic (Luigi Galvani) when doing the frog dissection, hands holding a different metal devices, inadvertently touch on frog's legs at the same time, the frog leg muscle twitches and immediately as if by the stimulation of current, and if only a metal instrument to touch the frog, there is no such reaction. Galvanic thinks, appear this kind of phenomenon is because the animal body internal produced a kind of power, he called a "hybrid".

1799, v put a piece of zinc plate and a piece of silver plate soak in salt water, found in the connection of two pieces of metal wire with an electric current passes through. So, he put many between zinc and silver strip mat saturated brine flannelette or pieces of paper, fold flat. Both ends of the touch feel intense current stimulation. V in this way they produced the world's first successful battery "volt electric pile". The "volt electric pile" is actually in series battery pack.

In 1836, Britain's Daniel redesign "volt electric pile", and has a better effect in succession "Bunsen cell" and "grove battery" and so on. At the time, however, no matter what kind of battery will be filling liquid between two metal plates, transport is not very convenient, especially the battery liquid sulfuric acid is used, is very dangerous when moving.

The ancestor of dry cell in the middle of the 19th century was born. In 1860, the French of the lakeland (George Leclanche) invented the carbon zinc battery, the battery is easier to manufacture, and the initial moisture of aqueous electrolyte replacing with sticky muddy shape similar to paste, then packed in container, "dry" sex cells appeared.

In 1887, the British holle sen (Wilhelm Hellesen) invented the earliest dry cell. Relative to the liquid battery, battery electrolyte for paste, does not leak, easy to carry, so get a wide range of applications.

With the development of science and technology, dry cell has developed into a big family, so far, already has more than 100.Common with ordinary zinc-manganese dioxide dry cell, alkaline zinc-manganese dioxide dry cell, magnesium, manganese dry batteries, zinc air battery, zinc oxide mercury batteries, zinc, silver oxide batteries, lithium manganese battery, etc.

For most used zinc-manganese dioxide dry cell, because of the different structure and can be divided into: paste zinc-manganese dioxide dry cell, paper plate zinc-manganese dioxide dry cell, diaphragm zinc-manganese dioxide dry cell, zinc chloride zinc manganese dry battery, alkaline zinc-manganese dioxide dry cell, quadrupole parallel zinc-manganese dioxide dry cell, laminated type zinc-manganese dioxide dry cell, etc.

Zinc manganese dry cell battery is commonly used in daily life.

The anode material: manganese (Mn), graphite rod

Anode materials: zinc (zinc)

Electrolyte: NH4Cl, ZnCl2 and starch paste

The battery can be expressed as symbols

(-) zinc | ZnCl2, NH4Cl (paste) lots of Mn | C (graphite) (+)

Negative: zinc - e - 2 = Zn2 +

The positive: mno2 nh4 + 2 + 2 + 2 e - = Mn2O3 + 2 nh3 + H2O

Overall reaction: zinc + mno2 nh4 + 2 + 2 = Zn2 + Mn2O3 nh3 + H2O + 2

Zinc manganese dry battery electromotive force is 1.5 V. Because of NH3 gas produced by adsorption, graphite electromotive force decline rapidly. If use high conductive paste KOH instead of NH4Cl, cathode material to steel cylinder, Mn layer close to the steel cylinder, forming the alkaline zinc manganese dry battery, with no gas producing cell response, low internal resistance, electromotive force is 1.5 V, is stable.

The dry cells belong to the chemical power of the battery, is a kind of disposable batteries, it is thought that the positive, zinc tube as the anode, external circuit convert chemical energy into electrical energy supply. Because the zinc manganese lively than in chemical reactions, zinc lost electrons are oxidation, reduction of manganese is electronic.

The page contains the contents of the machine translation.