Comparison of real life of ternary lithium battery and lithium iron phosphate battery

publish:2021-09-02 11:34:36   views :548
unknown unknown publish:2021-09-02 11:34:36  
548

三元锂和磷酸铁锂电池真实寿命哪个久?磷酸铁锂电池组和三元锂电池哪个寿命更长?锂离子电池分为三元锂电池和磷酸铁锂电池两种类型,磷酸铁锂电池包循环5000次剩余容量84%,三元锂电池循环3900次剩余容量66%,循环寿命方面进行比较,磷酸铁锂电池包优势更明显。今天存能电气小编就来聊一聊磷酸铁锂电池和三元锂电池谁的真实寿命更久。

Ternary lithium and lithium iron phosphate battery real life which long? Ternary lithium battery and iron phosphate lithium battery which long life? Lithium ion batteries are divided into ternary lithium batteries and lithium iron phosphate batteries. The remaining capacity of lithium iron phosphate battery pack is 84% after 5000 cycles, and the remaining capacity of lithium iron phosphate battery pack is 66% after 3900 cycles. In terms of cycle life, the advantages of lithium iron phosphate battery pack are more obvious. Today, we will talk about iron phosphate lithium battery and ternary lithium battery who has a longer real life.

磷酸铁锂电池:就是指用磷酸铁锂作为正极材料的锂离子电池。这一类电池的特点是不含贵重金属元素(比如钴等)。由于不含有贵重金属材料,磷酸铁锂电池包的原材料成本就可以被压缩的非常低廉。在实际使用中,磷酸铁锂电池具有耐高温,安全稳定性强,价格便宜,循环性能更好的优势。

磷酸铁锂电池:就是指用磷酸铁锂作为正极材料的锂离子电池。这一类电池的特点是不含贵重金属元素(比如钴等)。由于不含有贵重金属材料,磷酸铁锂电池包的原材料成本就可以被压缩的非常低廉。在实际使用中,磷酸铁锂电池具有耐高温,安全稳定性强,价格便宜,循环性能更好的优势

Lithium iron phosphate battery: refers to the lithium ion battery which uses lithium iron phosphate as the cathode material. This type of battery is characterized by the absence of precious metal elements (such as cobalt). Because it does not contain precious metals, the raw material cost of lithium iron phosphate battery packs can be compressed very low. In practical use, lithium iron phosphate battery has the advantages of high temperature resistance, safety and stability, low price and better cycle performance.

三元锂电池:是指使用镍钴锰酸锂做为正极材料,石墨作为负极材料的锂电池。与磷酸铁锂不同,三元锂电池电压平台很高,这也就意味着在相同的体积或是重量下,三元锂电池的比能量、比功率更大。除此之外,在大倍率充电、和耐低温性能等方面,三元锂电池也有很大的优势。

作为充电的锂电池,三元锂电池输出电压稳定、输出电压高、性能稳定、容量大、使用寿命长、工作温度范围广、安全性好以及环保无污染,因此在未来锂电池发展道路上具有很大的上升空间,但还需不断研究以求达到改善其自身缺陷的目的。

Ternary lithium battery: it refers to the lithium battery that uses lithium nickel-cobalt manganese oxide as the cathode material and graphite as the cathode material. Unlike lithium iron phosphate, ternary lithium battery voltage platform is very high, which means that in the same volume or weight, ternary lithium battery specific energy, specific power is greater. In addition, in terms of high rate charging, and low temperature resistance, ternary lithium batteries also have great advantages.

As lithium battery charging, the ternary lithium battery output voltage stability, high output voltage, stable performance, large capacity, long service life, wide working temperature range, good safety and environmental protection free from contamination, so in the future development of lithium-ion batteries has a big rise in space, but also need to constantly research in order to achieve the purpose of improving its own defects.

三元锂和磷酸铁锂电池真实寿命哪个久?

如果把剩余容量/初始容量=80%作为测试结束点,目前磷酸铁锂电池实验室1C循环寿命在3500次以上,部分达到5000次,而三元锂电池实验室1C循环寿命在2500次左右。在循环真是寿命这一个点上,磷酸铁锂电池包相较于三元锂电池,真实寿命要长许多。在同等循环次数下,磷酸铁锂电池的剩余容量也比三元锂电池多不少。

三元锂电池循环3900次剩余容量66%,磷酸铁锂电池循环5000次剩余容量84%,循环寿命比三元材料锂电池,磷酸铁锂电池优势明显。理论上来讲,三元锂电池寿命是2000次充放电循环,我们算作一天一充,也能维持5年多。不过实际上使用与理论还是有区别的,如果进行1000次充放电循环,实质上三元锂电池已经衰减了50%,也就是说充满电只能跑原来里程的一半。

Ternary lithium and lithium iron phosphate battery real life which long

If the remaining capacity/initial capacity =80% is taken as the end point of the test, the current 1C cycle life of lithium iron phosphate battery laboratory is more than 3500 times, and some reaches 5000 times, while the 1C cycle life of three yuan lithium battery laboratory is about 2500 times. At the point of cycle life, the real life of lithium iron phosphate battery pack is much longer than that of ternary lithium battery. At the same cycle times, the remaining capacity of lithium iron phosphate battery is much more than that of ternary lithium battery.

The remaining capacity of ternary lithium battery is 66% after 3900 cycles, and the remaining capacity of lithium iron phosphate battery is 84% after 5000 cycles. The cycle life of ternary lithium battery is significantly better than that of lithium iron phosphate battery. Theoretically speaking, the ternary lithium battery life is 2000 charge and discharge cycles, we count as a day charge, can also last more than five years. In practice, however, there is a difference between theory and use. If 1000 charge and discharge cycles are carried out, in essence, the ternary lithium battery has fallen by 50%, which means that the full charge can only run half of the original range.

三元锂电池和磷酸铁锂电池哪个寿命长?

       磷酸铁锂电池质量比较好的情况下,第一年衰减量可以控制在5%以内,第二年可以在15%以内。三元锂电池类型的,第一年降幅在7-10%,第二年在20-25%。当然,具体也和使用负荷,使用频率有关系,这里只是一个大概的表述。磷酸铁锂电池包比铅酸电池和三元锂电池的循环寿命都长。铅酸电池中的“长寿命”者不过300次左右;三元锂电池理论上可达2000次,实际应用到1000次左右容量会衰减到60%;而磷酸铁锂电池真实寿命即达到2000次,此时还有95%的容量,其理念循环寿命更达到3000次以上。综合多种因素,磷酸铁锂电池包的使用特性大致可以表述为:尺寸相对较大,低温性能不好,可以在寿命期内保持相对平缓的衰减速率,一般用8年左右是可以的;但如果在南方使用。磷酸铁锂电池的寿命还要比8年更长一些。

Ternary lithium battery and iron phosphate lithium battery which long life?

Under the condition that the quality of lithium iron phosphate battery is relatively good, the attenuation can be controlled within 5% in the first year and 15% in the second year. For ternary lithium battery types, the drop was 7-10% in the first year and 20-25% in the second. Of course, the specific and the use of load, the use of frequency, here is only a general statement. Lithium iron phosphate packs have a longer cycle life than both lead-acid and ternary lithium batteries. The "long life" of lead-acid batteries is only about 300 times; Ternary lithium battery can reach 2000 times in theory, and the capacity will decline to 60% when applied to about 1000 times in practice; The real life of lithium iron phosphate battery is 2000 times, at this time there are 95% capacity, its concept cycle life is more than 3000 times. Taking into account a variety of factors, the use characteristics of lithium iron phosphate battery pack can be roughly expressed as: relatively large size, low temperature performance is not good, can maintain a relatively gentle attenuation rate in the life period, generally used for about 8 years is ok; But if you use it in the South. Lithium iron phosphate batteries can last a little longer than eight years.

磷酸铁锂电池与三元锂电池的区别:

①能量密度比较

磷酸铁锂电池单体,能量密度为120Wh/kg,磷酸铁锂电池组为80Wh/kg;三元锂电池单体,能量密度为180Wh/kg,成组后能量密度为110Wh/kg。从数据上来看,在能量密度方面,三元锂电池优于磷酸铁锂电池。

②安全性比较

三元锂电池液态电解质易燃易爆,在长期使用过程中容易触发“热失控”,在充放电过程中锂枝晶的生长容易刺破隔膜,引起电池短路,造成安全隐患。而磷酸铁锂电池包在实际使用中具有耐高温、安全稳定性强、循环性能更好的优势。

③成本方面

由于磷酸铁锂电池不含有贵重金属材料,因此原材料成本就可以被压缩的非常低廉。而三元锂电池是以镍钴锰酸锂做为正极材料,石墨作为负极材料的锂电池,因此成本会比磷酸铁锂电池贵很多。

④应用领域

根据电车汇数据智库部数据显示,新能源客车的电池主要为磷酸铁锂电池,使用锰酸锂电池的客车也占比较高,而三元锂电池因为其优势成为乘用车商业化首选。

The difference between lithium iron phosphate battery and ternary lithium battery:

① Energy density comparison

The energy density of lithium iron phosphate battery is 120Wh/kg and the energy density of lithium iron phosphate battery is 80Wh/kg. The energy density of ternary lithium battery is 180Wh/kg, and the energy density of group is 110Wh/kg. From the point of view of data, in terms of energy density, ternary lithium battery is better than lithium iron phosphate battery.

② Safety comparison

The liquid electrolyte of ternary lithium battery is flammable and explosive, which is easy to trigger "thermal runaway" during long-term use. In the process of charging and discharging, the growth of lithium dendrite is easy to Pierce the diaphragm, causing short circuit in the battery and causing safety risks. In practice, lithium iron phosphate battery packs have the advantages of high temperature resistance, strong safety and stability, and better cycling performance.

③ Cost

Since lithium iron phosphate batteries do not contain precious metals, the cost of raw materials can be squeezed very low. And ternary lithium battery is lithium nickel cobalt manganese oxide as the cathode material, graphite as the cathode material of lithium battery, so the cost will be much more expensive than lithium iron phosphate battery.

④ Application field

According to the tram data collection think tank department data shows that the new energy bus battery is mainly lithium iron phosphate battery, the use of lithium manganese acid battery bus also accounts for a relatively high, and three yuan lithium battery because of its advantages become the first choice for passenger car commercialization.

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