内页banner
Search
  • What are the requirements for the selection of energy storage batteries? Why Lithium Iron Phosphate is preferred? What are the requirements for the selection of energy storage batteries? Why Lithium Iron Phosphate is preferred? Sep 13, 2022
    The requirements of the energy storage power station determine what kind of lithium battery is the most suitable energy storage battery.   Generally speaking, the purpose of the application of energy storage power stations in the grid is important to consider load regulation, with new energy access, to make up for line losses, power compensation, improve power quality, isolated network operation, peak shaving and valley filling, and several other major functional applications.   For example: peak shaving and valley filling, improve the grid operating curve, to explain in layman's terms, energy storage power station is like a reservoir, you can take the surplus water stored in the low period of electricity, and then take it out when the peak of electricity, so as to reduce the waste of electricity; in addition, energy storage power station can also reduce line losses, new lines and equipment life.   What are the requirements for the selection of lithium-ion batteries for energy storage? As a storage power station with photovoltaic power generation access, to achieve peak shaving, load compensation and improve power quality applications, energy storage lithium-ion is a very important component that must meet the following requirements.   1, easy to achieve multi-mode combinations to meet higher operating voltage and larger operating current. 2, lithium iron phosphate ion battery capacity and performance of detectable and diagnosable, so that the control system can be achieved in anticipation of the battery capacity and performance of the power station load scheduling control. 3, high safety and reliability: under normal use, the normal service life of the battery is no less than 15 years; under the limit, even if a failure occurs, it is within the controlled range and should not explode, burn or other failures that endanger the safe operation of the power station. 4. good fast response and large multiplier charge/discharge capability, generally requiring 5-10 times charge/discharge capability. 5, higher charge and discharge conversion efficiency, easy to install and maintain, with good environmental adaptability, and a wider range of operating temperatures.   Lithium iron phosphate battery is used in power generation systems for energy storage with good results, as a large-capacity battery storage system technology, lithium iron phosphate battery is preferred.  
  • Ternary lithium battery or lithium iron phosphate battery for the same price Ternary lithium battery or lithium iron phosphate battery for the same price Jul 21, 2022
    Ternary lithium battery or lithium iron phosphate battery for the same price? Generally preferred ternary lithium, can have better range and low temperature resistance characteristics, but under normal circumstances will not have such a choice, because lithium iron phosphate and ternary lithium manufacturing costs there is a certain gap, in general, in high with the electric car models with ternary lithium battery, low with the electric car with lithium iron phosphate. The following article explains the difference between ternary lithium batteries and lithium iron phosphate batteries.   1, ternary lithium high energy density   Ternary lithium energy density is generally 180-230Wh/kg, and high nickel ternary lithium battery is easy to reach 250Wh/kg, but high nickel will increase battery instability. The energy density of lithium iron phosphate is generally 140-160 Wh/kg, the highest or up to 180 Wh/kg. blade battery is also a lithium iron phosphate, such as the first generation of blade battery energy density of 140 Wh/kg, the second generation or to achieve 180 Wh/kg.   To be precise, the battery energy density is divided into weight energy density and volume energy density, the former is what we often talk about, the latter is less attention, but as important. Such as the blade battery structure innovation, volume energy density from 251Wh / L to 320Wh / L, although the weight energy density is not high, but the range to catch up with the ternary lithium.   2, ternary lithium is more resistant to low temperature   Lithium battery will become weak chicken in low temperature, lithium iron phosphate low temperature limit value is generally -20 ℃, lithium ternary can withstand -30 ℃ low temperature, and 0 to -20 ℃, lithium battery attenuation of about 10%-30%, and lithium ternary attenuation degree is generally 10% lower than lithium iron phosphate. At present, many car companies and battery manufacturers are developing more advanced thermal management technology, as a way to improve the low-temperature performance of power batteries.   3, lithium iron phosphate longer life   Ternary lithium battery charge and discharge cycle times are generally 2000 times, while lithium iron phosphate is generally 3000, ternary lithium 1.5 times. Battery life will not be expressed in years, but using the number of charge and discharge cycles for yi old, such as 2000 times, that is, after 2000 charge and discharge cycles battery attenuation of less than 20%. That is, after 2000 cycles, the battery capacity is equivalent to only 80% left, continue to use or continue to continuously decay.   4, lithium iron phosphate is safer   Through the needling test, the traditional lithium iron phosphate battery without open flame, smoke, the surface temperature reached 200 ℃ ~ 400 ℃, while the ternary lithium needling instantly appeared after the temperature rise of more than 500 degrees, and began to burn violently.   5, lithium iron phosphate cost less  
  • Types of new energy vehicle batteries? Kinds of new energy car batteries and their characteristics Types of new energy vehicle batteries? Kinds of new energy car batteries and their characteristics Aug 30, 2022
    As new energy vehicles develop, there are more and more innovations in new energy vehicle batteries. China is vigorously developing new energy vehicles, with national and local subsidies and licensing restrictions making new energy vehicles increasingly the best choice for car buyers. Most consumers only care about the range of electric vehicles, but ignore the core power of electric vehicles, the "power battery". What types of batteries are available for new energy vehicles today? Types and characteristics of new energy vehicle batteries.   I. Lithium iron phosphate battery Charging process, lithium iron phosphate in part of the lithium ion off, through the electrolyte transfer to the negative electrode, embedded in the negative carbon material; at the same time from the positive electrode to release electrons, from the external circuit to the negative electrode, to maintain the balance of chemical reactions. During the discharge process, lithium ions come out of the negative electrode and pass through the electrolyte to the positive electrode, while electrons are released from the negative electrode and reach the positive electrode from the external circuit to provide energy to the outside world.     Lithium iron phosphate battery features 1, high energy density. 2019 some excellent battery manufacturers can probably achieve an energy density of 175-180Wh/kg level, individual manufacturers using a stacking process, energy density of 185Wh/kg. 2, good safety performance, lithium iron phosphate cathode material electrochemical properties are relatively stable, which determines that it has a smooth charge and discharge platform, therefore, the structure of the battery will not change during the charge and discharge process, will not burn and explode, and even in short circuit, overcharge, extrusion, pinprick and other special conditions, is still very safe;. 3, long cycle life, lithium iron phosphate battery 1C cycle life is generally up to 2000 times, or even reach more than 3500 times, and for energy storage market requirements to reach more than 4000-5000 times to ensure 8-10 years of service life, higher than the cycle life of ternary batteries more than 1000 times, while the cycle life of long-life lead-acid batteries in about 300 times. 4, safe and environmentally friendly lithium iron phosphate batteries do not contain any heavy metals or rare metals, safe, non-toxic or non-polluting, for absolute green batteries. Due to the entire production process of lithium iron phosphate materials, clean and non-toxic, all raw materials are non-toxic and non-polluting.   Second, ternary lithium polymer batteries Ternary polymer lithium battery refers to the positive electrode material using nickel drill lithium manganate (Li (NicoMn) O2) or nickel drill lithium aluminate ternary positive electrode material of lithium batteries, ternary composite positive electrode material is nickel salt, drill salt, manganese salt as raw materials, nickel drill manganese ratio can be adjusted as necessary.   The characteristics of ternary polymer lithium battery 1, high energy density, theoretical energy density reaches 280 mAh/g, the actual capacity density of the product exceeds 150 mAh/g. 2, good cycling performance, with excellent cycling stability at both room temperature and high temperature. 3. High voltage platform, stable and reliable cycling in the voltage range of 2.5-4.3/4.4V. 4、Long cycle life, maintaining more than 80% capacity for 500 cycles. 5, ideal crystal structure, small self-discharge, no memory effect. III. Nickel-hydrogen battery Nickel-metal hydride battery is a kind of battery with good performance. NiMH batteries are divided into high-voltage NiMH batteries and low-voltage NiMH batteries. The positive active material of the NiMH battery is Ni(OH)2 (called NiO electrode), the negative active material is metal hydride, also called hydrogen storage alloy (electrode called hydrogen storage electrode), and the electrolyte is 6 mol/L potassium hydroxide solution. Nickel-hydrogen batteries are increasingly being noticed as an important direction for hydrogen energy applications. Features of NiMH batteries 1. High reliability, good protection against over-discharge and over-charging, high charge and discharge rates and no dendrite formation. It has good specific characteristics. Energy density of 60mAh/g. 2. Long cycle life, up to several thousand times. 3. Excellent low temperature performance, no significant change in capacity at -10°C.

leave a message

leave a message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit

home

products

Skype

WhatsApp