With the development of science and technology, power electronic products are endless, of course, different fields have different products play a corresponding function. Today we are discussing the topic of "lithium battery", which can be said to be ubiquitous in our lives, such as DC-DC converter, DC-AC converter, cell phones, computers, electric cars, drones and so on, but how to use, in order to safely and effectively play its role, there must be a few people do not understand. The 8 advantages of lithium batteries.lithium ion battery assembly
1. Lithium battery open circuit voltage is high
Lithium batteries use organic system electrolyte, monomer voltage is about 3.6 V. The voltage of nickel cadmium batteries and nickel metal hydride batteries using aqueous electrolyte is only 1.2 V, while the voltage of lead-acid batteries is about 2 v, which is one of the important reasons for the high open-circuit voltage lithium-ion batteries.battery cell machine
2. High specific energy density
Lithium-ion battery as a battery specific energy to carry out the density of up to 200Wh/kg, volume as well as energy distribution density of up to 300Wh/L. Lead-acid battery specific energy 40Wh/kg.
3. Small self-discharge rate
Room temperature lithium-ion battery charge retention energy is very strong, high-quality commercial battery cell monthly self-discharge rate of only 3% to 5%, much lower than other systems of secondary batteries monthly self-discharge rate.prismatic cell assembly
4. More cycles, long service life.
Lithium batteries use graphite as the anode material, in the process of charging and discharging, lithium ions are de-embedded inside the positive and negative materials, avoiding lithium ions inside the anode to produce lithium dendrites and battery damage caused by.
The cycle life of lithium-ion batteries is generally 1000 times, and high-quality batteries can reach 3000 times. If zero strain materials (lithium iron phosphate and lithium titanate) as anode materials, its life can reach 10,000 times.
5. Wide operating temperature range
The operating temperature range of lithium battery can reach -30℃-60℃.
6. No memory effect
Memory effect refers to the phenomenon that the battery capacity decreases when the battery is not thoroughly charged and discharged for a long period of time, which is due to the fact that the battery remembers the user's daily charging and discharging amplitude and mode.
Lead-acid batteries and nickel-cadmium batteries have a more serious memory effect, while lithium batteries do not have a memory effect.
7. Environmental protection is good for the environment
Lithium batteries do not contain cadmium, lead, mercury and other harmful substances, usually considered environmentally friendly batteries.
8. Small internal resistance
Lithium batteries can be used in different organic management system of the electrolyte, the conductivity is much lower than the water system as electrolyte, the internal conductance impedance than nickel-cadmium batteries and nickel-metal hydride batteries are lower than a data order of magnitude.
Related Hot Topic
What connections do lithium-ion batteries have?
Lithium batteries are interconnected in a following way. I frequently used the term "erie connection" to describe the lithium battery's erie circuit. Example: If two batteries with a combined capacity of 200 Ah and 24 V are linked in series, the resulting output voltage is 48 V and 200 Ah.