Understand the advantages and disadvantages of lithium iron phosphate
battery energy storage technology in one minute. With the rise of the lithium
battery energy storage market, some power battery companies have deployed
lithium iron phosphate battery pack energy storage business in recent years.
Nowadays, lithium iron phosphate batteries have become the mainstream of
domestic energy storage technology applications, and lithium battery energy
storage will achieve a truly large-scale explosion by 2020 at the latest. With
the development and rapid demand of new energy vehicles, lithium iron phosphate
batteries have opened up a new world. The editor below will take you to
understand the advantages and disadvantages of lithium iron phosphate battery
energy storage technology.
Lithium iron phosphate battery refers to a lithium-ion battery using
lithium iron phosphate as the positive electrode material. The cathode materials
of lithium-ion batteries mainly include lithium cobalt oxide, lithium manganate,
lithium nickel oxide, ternary materials, lithium iron phosphate, etc. Because
its performance is particularly suitable for power applications, the word
"power" is added to the name, that is, lithium iron phosphate power battery.
1. Advantages of energy storage lithium iron phosphate batteries:
1. Lithium iron phosphate batteries have a long life, with a cycle life of
more than 2,000 times, and 3C cycle life of more than 800 times. Under the same
conditions, lithium iron phosphate batteries can be used for 7 to 8 years.
2. Safe to use. Lithium iron phosphate batteries have undergone strict
safety testing and will not explode even in violent collisions.
3. Fast charging. Using a special charger, the battery can be fully charged
at 1.5C in 40 minutes, and the starting current can reach 2C.
4. Lithium iron phosphate batteries are resistant to high temperatures. The
thermal peak of lithium iron phosphate batteries can reach 350 to 500 degrees
Celsius. The operating temperature range is wide (-20~+75℃) and high temperature
(60℃).
5. Lithium iron phosphate batteries have large capacity, and their energy
density is 3 to 4 times that of lead-acid batteries, 2.5 times that of
nickel-cadmium batteries, and 1.8 times that of nickel-metal hydride
batteries.
6. Lithium iron phosphate batteries have no memory effect. No matter what
state the battery is in, it can be used at any time. There is no need to
discharge it completely and then charge it.
7. Lithium iron phosphate batteries are green, non-toxic, non-polluting,
and comply with European RoHS regulations. They are green and environmentally
friendly batteries.
2. Disadvantages of energy storage lithium iron phosphate batteries:
1. Poor consistency. The life of iron phosphate battery pack is
significantly lower than that of single battery pack. Compared with other
batteries, the lifespan of lithium iron phosphate battery packs has no obvious
advantage. There are a large number of battery packs in the second-hand market
that have been retired before reaching their expected lifespan.
2. Poor low temperature performance. The capacity drops rapidly when it is
lower than 0 degrees, and the cycle performance is extremely poor at low
temperatures.
3. During the sintering process during the preparation of lithium iron
phosphate, iron oxide may be reduced to elemental iron in a high-temperature
reducing atmosphere. Elemental iron can cause micro-short circuits in batteries
and is the most taboo substance in batteries.
4. The preparation cost of materials and the manufacturing cost of
batteries are high, the battery yield is low, and the consistency is poor.
5. The tap density of the positive electrode of lithium iron phosphate
battery is small, and the density is generally around 0.8 to 1.3.
3. Lithium iron phosphate battery energy storage technology will be an
important potential market
As a cutting-edge technology and strategic emerging industry that affects
the future energy landscape, energy storage has entered a critical period of
industrial development as policies gradually become clearer. As application
fields gradually open up, the market will accelerate expansion. It is expected
that the capacity of my country's energy storage market will exceed 600 billion
yuan in the next ten years. By 2020, the cumulative installed capacity of my
country's energy storage market will exceed 50GW, and the scale of energy
storage investment and construction will reach 230 billion yuan.
Due to the advantages of lithium iron phosphate batteries such as
ultra-long life, safe use, large capacity, and green environmental protection,
the transfer to the energy storage field will extend the value chain, help
promote new business models, and construct a new industrial chain.
4. The explosion of grid energy storage increases the demand for lithium
iron phosphate batteries
At present, the lithium batteries used in energy storage in China are still
mainly lithium iron phosphate series. This time, the demand for energy storage
in the domestic power grid has exploded, which will directly drive the demand
for lithium iron phosphate batteries. The main reasons are: first, the explosion
of grid energy storage demand provides a way to reduce overcapacity for lithium
iron phosphate batteries that cannot meet the new subsidy policy for new energy
vehicles; second, in recent years, power battery companies have improved in
technology, cost and other aspects. Development, lithium iron phosphate
batteries have cost-effective advantages over lead-acid and lead-carbon
batteries.
It is estimated that by 2020, the total demand for lithium battery energy
storage on the power generation side and the grid side will be 8GWh. Lithium
iron phosphate battery UPS has become the mainstream of domestic energy storage,
especially grid energy storage applications. Energy storage systems using
lithium batteries have become The mainstream choice for power grid groups and
operators. Grid energy storage is driving demand for lithium iron phosphate
batteries. It is foreseeable that domestic grid energy storage will create a new
market breakthrough for lithium iron phosphate batteries.
5. Is the best choice for energy storage battery lithium iron phosphate or
ternary battery?
The battle over the technical routes of lithium iron phosphate and ternary
batteries has never stopped. According to foreign media reports, due to the
tight production and sales of ternary batteries, more and more energy storage
suppliers are beginning to focus on China's lithium iron phosphate batteries.
Moreover, some energy storage suppliers said that based on the performance and
application market benefits of lithium iron phosphate, the lithium iron
phosphate battery energy storage route is currently the right choice.
At the same time, the manufacturing capacity of lithium iron phosphate
batteries will continue to grow, and the supply period of ternary batteries has
been extended to six or even September, further promoting price declines. This
will stimulate a significant increase in the application of lithium iron
phosphate in user-side energy storage projects.
Summary: As a manufacturer of lithium battery UPS and lithium iron
phosphate battery packs, we are optimistic about the future market of lithium
iron phosphate batteries in the energy storage field. Lithium battery energy
storage is mainly used in communication base stations, special aerospace, rail
transit, UPS power supply, home energy storage, data centers and other projects.
Lithium battery UPS energy storage power supply companies have a large market
space.
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