1. Lithium-ion batteries
"Lithium battery" is a class of lithium metal or lithium alloy as a negative electrode material, the use of non-aqueous electrolyte solution of the battery, due to the chemical characteristics of lithium metal is very active, so that the processing of lithium metal, preservation, use, the environmental requirements are very high. With the development of science and technology, lithium batteries have now become the mainstream.
Its main advantages are: long service life, high storage energy density, light weight, strong adaptability:
The disadvantages are poor safety, explosive, high cost, and restricted use conditions.
2. Ternary lithium battery
Ternary polymer lithium battery refers to the positive electrode material using nickel cobalt manganese oxide lithium (L I (NiCoMr) O2) ternary cathode material lithium battery, ternary composite cathode material is nickel salt, cobalt salt, manganese salt as raw materials, the proportion of nickel cobalt manganese can be adjusted according to actual needs, ternary material to do the positive battery relative to lithium cobalt acid battery safety is high, but the voltage is too low, With a mobile phone (mobile phone cut-off voltage is generally around 3.0V), there will be an obvious sense of insufficient capacity.
Its main advantages are: high energy density, the same capacity of small volume.
The disadvantages are: poor thermal stability, internal short circuit is easy to produce open flame, capacity attenuation is fast, and life is short.
3. lead-acid battery
It is a battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte is a sulfuric acid solution. In the discharge state of lead-acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. In the charging state, the main components of the positive and negative electrodes are lead sulfate.
Its main advantages are: safe sealing, deflating system, simple maintenance, long service life, stable quality, high reliability;
The disadvantages are: the pollution of lead is larger, and the energy density is low (that is, too heavy).
4. lithium iron phosphate battery
It is a lithium ion battery using lithium iron phosphate as a positive electrode material. The main cathode materials of lithium-ion batteries are lithium cobalt, lithium manganate, lithium nickel, ternary materials, lithium iron phosphate and so on. Lithium cobaltate is the anode material used in most lithium-ion batteries.
Its main advantages are: excellent charge and discharge performance, no memory effect, long life, good high temperature resistance, good safety performance, environmental protection;
The disadvantages are: lower energy density, larger volume of the same capacity, slightly reduced low temperature performance, and higher manufacturing costs.
In the current security industry, taking into account security and capacity stability factors, lithium iron phosphate batteries are the current mainstream choice.
5. sodium sulfur battery Sodium sulfur battery,
It is a secondary battery with sodium metal as the negative electrode, sulfur as the positive electrode and ceramic tube as the electrolyte diaphragm. At a certain working degree, the reversible reaction between sodium ions and sulfur occurs through the electrolyte diaphragm, forming the release and storage of energy.
Its main advantages are: specific energy up to 760Wh/kg, no self-discharge phenomenon, discharge efficiency of almost 100%, life can reach 10~15 years;
The disadvantage is that the high temperature of 350℃ melts sulfur and sodium.
6. flow battery flow energy storage battery
It is a kind of device suitable for fixed large-scale energy storage (power storage), compared with the currently commonly used lead-acid batteries, nickel-cadmium batteries and other secondary batteries, with power and energy storage capacity can be independently designed (energy storage medium stored outside the battery), high efficiency, long life, deep discharge, environmental friendliness and other advantages, is one of the preferred technologies for large-scale energy storage technology.
Its main advantages are: flexible layout, long cycle life, quick response, will not produce harmful emission;
The disadvantage is that the energy density varies greatly.
7. lithium manganese acid battery lithium manganese acid battery
It refers to the battery using lithium manganate material in the positive pole, the nominal voltage of lithium manganate battery is 2.5~4.2v, and lithium manganate battery is widely used with low cost and good safety.
Its main advantages are: high energy density, low cost, high safety and stable low temperature performance.
The disadvantage is that the high temperature performance is poor and the life is relatively short.
8. lithium cobalt acid battery
Lithium cobalt acid battery structure stability, high capacity ratio, outstanding comprehensive performance, but its poor safety, very high cost, mainly used in small and medium-sized cell, widely used in notebook computers, mobile phones, MP3/4 and other small electronic equipment, nominal voltage 3.7V.
Its main advantages are: high vibration density, good stability, stable structure, good product consistency.
The disadvantages are poor safety, very high cost, general cycle life, and poor material stability.
9. nickel battery NIMH battery
It is a battery with good performance. Ni-mh battery positive active substance is Ni (OH) 2 (called NiO electrode), negative active substance is metal hydride, also known as hydrogen storage alloy (electrode called hydrogen storage electrode), electrolyte is 6mol/L potassium hydroxide solution.
Its main advantages are: high energy density, fast charge and discharge speed, light weight, long life, no environmental pollution;
The disadvantages are slight memory effect, more management problems, and easy to form a single battery partition melting.
