Lithium-iron batteries are becoming popular in the energy storage market. The business opportunity of secondary application of lithium batteries in energy storage systems has taken shape, making lithium iron batteries with high conversion efficiency and cycle life a popular choice and a popular choice for replace lead-acid batteries. for electric vehicles, but also It shines in solar energy, small energy storage devices and other equipment.
Business opportunities for the secondary application of lithium batteries in electric vehicles in energy storage systems (ESS) are poised to explode. Driven by relevant industry players, there are already basic business models for recycling electric vehicle lithium batteries into energy storage systems, including the substitution effect modelcaused by lithium battery remanufacturing, electric vehicle battery leasing and system energy service models, etc., which should be promoted. Helping electric vehicle lithium battery energy storage business opportunities take shape.
It is worth noting that, driven by the lithium battery energy storage market, lithium iron batteries enjoy their advantages such as high energy density, high voltage and low self-discharge rate in lithium cobalt (LiCoO2). ), lithium-manganese (LiMn2O4) and ternary (LiCoNi1-XO2) batteries stand out and are expected to gradually replace lead-acid batteries and become the main battery for energy storage applications.
The business model is gradually taking shape and the outlook for lithium battery energy storage is promising
Li Yongjian, directorof Research Center of Industrial Consulting Center of Tuoyuan Industrial Research Institute, said: The lithium secondary battery energy storage market for electric vehicles is taking shape and will add more benefits to the electric vehicle market.
Li Yongjian, research director of the Industrial Consulting Center of Tuoyuan Industrial Research Institute, said that when the lithium battery capacity (state of charge, SOC) remains at 80% , it can no longer supply electricity. Vehicles However, the lithium battery for electric vehicles When 40-80% of the battery capacity remains, it still has a high energy storage value. It can be used by ordinary households after each charge and has about 2 days of power consumption. thus becoming a new business opportunity in the energy storage market.
Li Yongjian believes that market demand mydial for secondary lithium battery energy storage systems for electric vehicles will increase significantly from 204 milliwatts/hour (mW/h) last year to 1,520 mW/h in 2013. energy storage will increase from approximately NT$8.5 billion to approximately NT$52.4 billion, and market opportunities are expected to expand.
It is understood that one of the business models for the redesign of lithium battery energy storage systems is the substitution effect model. Looking at the business model of Japanese company 4R Energy, high-power lithium batteries are recycled and rebuilt. use in Compared with the price of a new lithium battery energy storage system, the price of the energy storage system is significantly different, resulting in a substitution effect.
On the other hand, storage systemsenergy can provide electricity to individual homes, buildings and communities through standalone microgrids used by communities and businesses, also because they use renewable energy to produce electricity they can mitigate the problem ; need for new electricity transmission and distribution systems Investment pressure on lines and new power plants can thus reduce the investment cost of the electricity network. In addition, the secondary lithium battery energy storage system can also schedule power generation in advance for the distributed power generation system of the microgrid, so that the lithium secondary battery energy storage system can energy can provide power at a specific time, especially for electrical support during power peaks; consumption periods, it can improve the overall benefits of the management mechanismEnergy management can further reduce the cost of power supply during peak periods.
It is worth noting that 4R Energy, a company owned 51% and 49% by Nissan and Sumitomo Group respectively, is engaged in the reuse of used batteries for electric vehicles and the promotion of related activities . inject vitality into the lithium secondary battery energy storage market.
In fact, the San Diego National Laboratory (SNL) in the United States established the concept of lithium secondary battery applications for electric vehicles in 2002, but the standards, specifications and methods of relevant implementation are still the subject of academic research. . scene. Li Yongjian admitted that the high cost of lithium batteries for electric vehicles has led to low consumer acceptance of electric vehicles, making electric vehicles not profitable.t still not popular enough.
However, the current dilemma in the electric vehicle market can be solved with the help of the electric vehicle lithium battery leasing model. Li Yongjian analyzed that through the rental of lithium batteries for electric vehicles, consumers can reduce the cost of purchasing an electric vehicle at one time and increase their purchasing willingness when the number of electric vehicles increases, it can also increase sources of secondary waste recycling; lithium batteries for electric vehicles, and are expected to drive two industrial booms.
Replacement of lead-acid batteries with lithium-iron batteries with high conversion efficiency
On the other hand, the development of energy storage applications of lithium batteries has also increased the role of lithium-iron batteries. Lithium-iron batteries have advantages such ashigh conversion efficiency and long service life. They have been adopted by manufacturers such as Sharp and Youliang in a variety of home/commercial energy storage devices and are expected to expand the scope of application of lithium iron. batteries.
Ke Weixin, deputy director of Shangzhi precision lithium battery business division, pointed out that lithium iron batteries have high conversion efficiency, high energy density, high voltage and low self-discharge rate, and should gradually replace lead-acid batteries.
Ke Weixin, deputy director of Shangzhi precision lithium battery business division, said that the energy efficiency of lithium iron batteries is 95% and the service life is more than 2,000 times, which is compared to 60% efficiency. and 400 times of use of lead acid batteries. Surpassing many and having the advantagesWith high energy density, high voltage and low self-discharge rate, it will gradually replace lead-acid batteries.
It is understood that the lithium iron batteries and powder materials currently used in Sharp and Youliang energy storage systems are manufactured in Taiwan. Some of them originally used lithium manganese batteries, but since lithium iron batteries have a long service life, can be used under rapid charge and discharge conditions, and are suitable for use In high-power discharge energy storage systems, the company has gradually shifted to lithium-iron batteries. Development of energy storage systems.
Ke Weixin pointed out that lithium iron batteries made from refined lithium iron powder have shorter charging time and lighter weight than lead-acid batteries and nickel batteries. -metal hydride, and can increase their capacity and power. especially suitable for starting electric vehicle batteries, the application range covers electric scooters, plug-in hybrid electric vehicles, electric cleaning vehicles, electric motorcycles and electric boats, which can extend the use time and have better climbing ability.
In addition, lithium iron batteries can also be used in renewable energy storage systems, such as wind and solar power generation systems. The stronger the wind intensity, the greater and stronger the current generated. The intensity of the sun, the higher the charging current, which can provide large current charging and discharging capabilities.
In addition, lithium iron batteries can also be used for small energy storage devices, suchsuch as emergency first aid kits, mobile power supplies for camping and mobile power supplies for stands, etc., which can provide four to six hours of DC power.
The newly used lithium battery is protected from over-discharge, how can it be restored?
5HBUAD8G 5 pin Z2GB SOT-3535 pin AD03Y1 SMD 5 pin 5 pin DCERM15- pin EA5-pin 6CSAC6DF SOT -153B332 SOT-23-55RD1 The AD03 written on the SOT-23-55 pin package is typed 2C2F and the package is SOT-23-5MCFL". The boost IC SOT-23 -5 package is marked as "SA4R". "SOT-23-5 chip package, with 7Z0 printed on it...
Which brand of lithium battery protection IC is good?
< p>Generally, lithium batteries have a high current over-discharge protection circuit, if the battery is over-discharged and is not charged immediately (the recovery capacity of the batterye is low), the battery voltage is too low, the protection circuit is in a cut-off state, and the charging process cannot be completed.
Solution: Yes, cut off the battery box, connect the two poles of the charger directly to the two poles of the battery through the protection circuit. (pay attention to the polarity, you can use a multimeter to test the positive and negative poles first), charge for a few minutes, the battery voltage will increase, and the protection circuit can be opened to resume normal charging < p> Detailed information:
Lithium battery overprotection principle: lithium-ion The circuit battery protection consists of. a protection integrated circuit and two power MOSFETs. The protection IC monitors the battery voltage and passes to an external power MOSFET to protect thebattery in case of overcharging or discharging. The function of the protection IC is overcharge, overdischarge and overcharge protection. -current/short circuit protection.
The principle of the overcharge protection integrated circuit is: when the external charger charges the lithium battery, it should be stopped to prevent the internal voltage from increasing due to the increase of temperature. Charging status. At this time, the protection IC should detect the battery voltage when it reaches 4.25V (assuming the battery overload point is 4.25V), it will activate the overload protection and thus turns off the MOSFET. stop charging.
The lithium battery protection board is mainly composed of protection integrated circuit (overvoltage protection) and MOS transistor (overcurrent protection).Lithium batteries have large discharge current, low internal resistance, long life and no memory effect. Lithium-ion batteries are strictly prohibited from overcharging, overdischarging and short circuiting during use. the battery will catch fire, explode and have other fatal defects. Therefore, when using rechargeable lithium-ion batteries, the battery will have a protective plate to protect the safety of the battery.
There are many manufacturers. Lithium battery protection IC, but I personally think Gao Di is good