Difference between lithium-ion and lithium batteries.

　　The chemical name of lithium thionyl chloride battery is Li?SOCl2, abbreviated as lithium battery. Due to its special chemical characteristics, passivation effect, its annual self-discharge current is less than 1%, storage life of more than 10 years, so it is widely used in water meters, electric meters and gas meters to do power.

　　Lithium-ion batteries are disposable batteries and cannot be recharged. Lithium batteries are rechargeable batteries and can be recharged repeatedly.

　　The chemical name of thionyl chloride battery is Li?SOCl2, referred to as lithium battery. Due to its special chemical characteristics, passivation effect, its annual self-discharge current is less than 1%, storage life of more than 10 years, so it is widely used in water meters, electric meters and gas meters to do power.

　　Lithium-ion batteries are disposable batteries and cannot be recharged. Lithium batteries are rechargeable batteries and can be recharged repeatedly.

　　This answer to the front is no problem, the back of the ((lithium batteries are rechargeable batteries, can be recharged.)) This is incorrect. Lithium battery is a disposable lithium primary batteries, lithium batteries, lithium manganese batteries, lithium-sulfur batteries, lithium-iron batteries, etc., are primary batteries, non-rechargeable. Rechargeable is called a battery, should be called lithium-ion batteries, the voltage is 3.7V, there are also lithium iron phosphate as cathode material lithium-ion batteries 3.2V nominal voltage. Lithium-ion batteries are mainly used in three meters (smart meter, smart water meter, smart gas meter) inside, as well as some special purposes. But buddy your level is still good, recently read a lot of information in this regard, on this difference and difference is noted.LithiumBattery lithium (original) batteries, Lithiumionbattery lithium-ion battery charging, there is a difference in the English language, we simplified the Chinese.

　　Lithium batteries and lithium manganese batteries are disposable lithium batteries, that is, the battery itself is not rechargeable after the capacity is depleted.

　　Lithium batteries are called lithium thionyl chloride batteries, Li-Socl2, the positive electrode is thionyl chloride, the open circuit voltage is 3.6V, the termination voltage is 2.0V.

　　Lithium manganese battery is called lithium manganese dioxide battery, Li-MnO2, the positive pole is manganese dioxide, open circuit voltage 3.0V, termination voltage 1.8V.

　　Users in the selection of batteries in addition to consider the operating voltage, but also need to consider the capacity of the battery, pulse current, volume and the production level of each manufacturer.

　　Lithium-ion battery shell is generally used steel shell, Wuhan Vuantech lithium-ion batteries use 304 food-grade stainless steel, while some unscrupulous manufacturers use iron shells in order to reduce costs. In the selection should be carefully screened.

　　Lithium-manganese battery: full name lithium-manganese dioxide battery (Lithium-manganesedioxide, Li-MnO2). In the primary battery, lithium metal as the anode manganese dioxide as the cathode, in the primary battery, the anode is the negative pole, the electron flows from the negative pole to the positive pole, the current flows from the positive pole to the negative pole; in the electrolytic cell the anode is connected to the positive pole, the oxidation reaction occurs on the anode is the anion in the solution. Corresponding to the cathode (cathode).

　　Small lithium batteries are very commonly used in portable electronic devices such as PDAs, watches, camcorders, digital cameras, thermometers, calculators, laptop bios, communication devices, and remote car door locks. They come in many shapes and sizes, with the common variety, the 3-volt “coin” type manganese variety, generally 20 mm in diameter and 1.6-4 mm thick. The heavy-duty power needs of many of these devices make lithium-ion batteries a particularly attractive option. Li-Ion batteries, in particular, can easily support the current needs of brief, heavy devices such as digital cameras, and they hold a higher voltage for a longer period of time than alkaline batteries.

　　Lithium-Manganese Batteries: Let's take a look at the types of lithium batteries. Lithium battery is currently the most used lithium button cell (the earliest we call mercury battery, because of pollution and capacity of the reason is now gradually replaced by lithium - manganese formula) basic voltage of 3.0V, the highest capacity of up to 1200mAH. this battery can be designed into a thin and light, short and high-capacity condition. In addition, the discharge curve is stable, so many high-tech products such as motherboards use it as a backup battery for memory. In addition, the cylindrical lithium battery is designed to have high capacity, low internal resistance, and can instantly discharge high current, which is an excellent choice for the camera battery market. However, because its raw material, lithium metal, has a fairly high chemical activity, it is not advisable to use too much in the same battery to avoid the risk of explosion.

　　Lithium - manganese dioxide battery after a special process of manganese dioxide for the positive active material, high potential, high specific energy of lithium metal for the negative active material, the electrolyte using conductive organic electrolyte solution, the battery structure has a fully sealed and semi-sealed in two forms. Of course, the safety and preservation period of fully sealed is better than that of semi-sealed.

　　Lithium - manganese dioxide battery negative electrode is lithium metal, positive electrode active substance is manganese dioxide. The electrolyte is the inorganic salt lithium perchlorate (LiClO4), which is dissolved in the mixed organic solvent of propylene carbonate (PC) and 1,2-dimethoxyethane (DME), and its chemical expression is:

　　(-)Li/LiClO4-PC+DME/MnO2(+)Battery Negative reaction: Li→Li++e Positive reaction: MnO2+Li++e→MnO2(Li+)Total reaction: Li+MnO2→MnO2(Li+)

　　Fully sealed lithium-manganese battery

　　Fully sealed lithium-manganese dioxide battery(2 pictures)

　　The reaction mechanism of lithium-manganese dioxide battery is different from that of general battery, in non-aqueous organic solvent, lithium ions under the dissolution of negative lithium migrate into the crystal lattice of MnO2 through the electrolyte to generate MnO2(Li+).Mn is reduced from +4 valence to +3 valence, and its crystal structure does not change.

　　Lithium, atomic number 3, is located in the periodic table of the first main group of the first, in the known metal in the atomic weight of the lightest (6.94), the electrode potential is the most negative (-3.045V), the element name comes from the Greek, the original meaning is “stone”. 1817 by the Swedish scientist Aphwechung in the analysis of the lithium feldspar ore found. Because of its potential is the most negative, with the appropriate positive materials to match the composition of the battery has superior electrical properties. Lithium - manganese dioxide battery is a lithium series of primary battery in the lowest price, the best security battery varieties. The open-circuit voltage is about 3.3V, the load voltage is 2.8V, the nominal voltage is 3.0V, the cut-off voltage is 2.0V, the discharge voltage is relatively smooth, suitable for high-power discharge.

　　The Li/MnO2 electrochemical system can be fabricated in different designs and mechanisms to meet the multifaceted requirements of miniaturized and lightweight mobile power for different applications. It can be available in a variety of structural forms, including coin type, carbon pack type, coiled type and square battery pack.

　　Coin battery

　　The manganese dioxide tabs face the negative electrode of the lithium disc, separated by a non-woven polypropylene diaphragm, which infiltrates the electrolyte. The battery is sealed with a crimped compression seal. The battery case is used as the positive terminal and the cover is used as the negative terminal. The retention life of this coin cell is 3 years.

　　CR Button Cell Illustrated Lithium-Manganese Battery

　　CR Button Cell Illustrated Lithium Manganese Battery

　　Battery discharge reaction

　　Negative reaction:Li→Li++e-

　　Positive reaction:Mn+4O2+Li++e-→Mn+3O2(Li+)

　　Total discharge reaction:Mn+4O2+Li→Mn+3O2(Li+)

　　The open circuit voltage of lithium-manganese dioxide battery is about 3V, and the smooth discharge voltage is one of its characteristics.

　　I. The main performance of the battery

　　1. Energy density

　　The voltage of lithium-manganese dioxide battery is up to more than 3V, which is twice as much as that of ordinary battery, which means saving power space and reducing weight for electrical appliances.

　　2.Discharge performance

　　Even after a long period of discharge, it still maintains a stable working voltage, which greatly improves the reliability of electrical appliances to achieve maintenance-free (basically no need to replace the battery) degree of electrical appliances.

　　3. Temperature characteristics

　　High-quality, conductive organic electrolyte solution application, so that the battery can work normally in the temperature range of -20 ℃ ~ 60 ℃, after a special process and formulations, but also to meet the requirements of the operating temperature of -40 ~ 80 ℃.

　　4. Leak-proof performance

　　Reliable sealing structure and the use of high-quality electrolyte and positive and negative active substances make the batteries have good anti-leakage performance.

　　5.Working Characteristics

　　Due to the role of organic matter and lithium, a protective film layer is formed on the surface of lithium negative electrode, which is the fundamental reason why lithium batteries can keep their performance unchanged for a long time, coupled with the precise and reliable sealing structure of the battery as well as the use of high-stability active substances, so that the battery's self-discharge rate of the annual capacitance drop can be controlled at a level of less than 2%.

　　CR button cell conventional lithium manganese batteries

　　CR button cell lithium manganese batteries conventional type

　　II. Application of batteries

　　Lithium manganese button batteries are widely adapted for use in computer motherboards, mobile communications, C-MOS, S-RAM and electronic memory systems. As a support power source, they are applied in daily electronic products such as watches, cameras, telephones, rice cookers, calculators, punch cards, electronic notepads, blood glucose testers, ear warmers, remote controls, electronic flash products, electronic flash wave shoe lights, and so on.

　　Cylindrical carbon batteries (energy type)

　　Carbon-coated batteries are one of two types of cylindrical lithium manganese dioxide batteries, which have the maximum specific energy due to the use of thick electrodes and the largest amount of active material. However, the surface area of the electrodes, and thus the discharge capacity of the battery, is limited, making it useful only for low-current applications. The battery cover has a safety valve that releases the pressure inside the battery in the event of a mechanical or electrical abuse event. In addition to crimp-sealed batteries, welded-sealed batteries can also be made, and these have a 10-year storage life, thus allowing them to be used for reservoir backup power and other low-current applications. This is the energy type, generally the energy type lithium manganese dioxide battery model number after the addition of SE, for example: CR14335SE. without SE is the power type.

　　Lithium Manganese Dioxide Battery Carbon-coated Structure Diagram

　　Lithium manganese dioxide battery carbon coated structure diagram

　　Cylindrical Coiled Electrode Li/MnO2 Cells (Power Type)

　　This design is specialized for high current pulse applications and continuous high current discharge. The lithium negative and positive electrodes (thin, paste-coated electrodes on a conductive grid) are previously wound into a “tape” structure with a microporous polypropylene diaphragm configured between the two electrodes. This design increases the surface area of the electrodes, thereby improving the discharge rate capability of the battery.

　　The high-current rolled construction batteries have a safety valve that releases pressure in the event of a battery abuse event, and many of these batteries are also fitted with recoverable positive temperature coefficient (PTC) devices that limit current and prevent accidents due to short circuits.