电池优点：

1）电压高

单体电池的工作电压高达3.7-3.8V（磷酸铁锂的是3.2V），是Ni-Cd、Ni-MH电池的3倍。

2）比能量大

能达到的实际比能量为555Wh/kg左右，即材料能达到150mAh/g以上的比容量（3-4倍于Ni-Cd，2-3倍于Ni-MH），已接近于其理论值的约88%。

3）循环寿命长

一般均可达到500次以上，甚至1000次以上，磷酸铁锂的可以达到8000次。对于小电流放电的电器,电池的使用期限，将倍增电器的竞争力。

4）安全性能好

新型锂离子电池

新型锂离子电池

无公害，无记忆效应。作为Li-ion前身的锂电池，因金属锂易形成枝晶发生短路，缩减了其应用领域：Li-ion中不含镉、铅、汞等对环境有污染的元素；部分工艺（如烧结式）的Ni-Cd电池存在的一大弊病为“记忆效应”，严重束缚电池的使用，但Li-ion根本不存在这方面的问题。

5）自放电小

室温下充满电的Li-ion储存1个月后的自放电率为2%左右，大大低于Ni-Cd的25-30%，Ni-MH的30-35%。

6) 快速充电

1C充电30分钟容量可以达到标称容量的80%以上，磷铁电池可以达到10分钟充电到标称容量的90%。

7) 工作温度

工作温度为-25~45°C，随着电解液和正极的改进，期望能扩宽到-40~70°C。

电池缺点：

衰老

与其它充电电池不同，锂离子电池的容量会缓慢衰退，与使用次数有关，也与温度有关。这种衰退的现象可以用容量减小表示，也可以用内阻升高表示。

因为与温度有关，所以在工作电流高的电子产品更容易体现。用钛酸锂取代石墨似乎可以延长寿命。 储存温度与容量永久

损失速度的关系：

回收率

大约有1%的出厂新品因种种原因需要回收。

不耐受过充

过充电时，过量嵌入的锂离子会永久固定于晶格中，无法再释放，可导致电池寿命短。

不耐受过放

过放电时，电极脱嵌过多锂离子，可导致晶格坍塌，从而缩短寿命。

Battery advantages:

1) High voltage

The working voltage of the single battery is as high as 3.7-3.8V (3.2V for lithium iron phosphate), which is 3 times that of Ni-Cd and Ni-MH batteries.

2) Larger than energy

The actual specific energy that can be achieved is about 555Wh/kg, that is, the material can reach a specific capacity of more than 150mAh/g (3-4 times that of Ni-Cd, 2-3 times that of Ni-MH), which is close to its theoretical value. about 88%.

3) Long cycle life

Generally, it can reach more than 500 times, or even more than 1000 times, and lithium iron phosphate can reach 8000 times. For electrical appliances with low current discharge, the service life of the battery will double the competitiveness of the electrical appliances.

4) Good safety performance

New lithium-ion battery

New lithium-ion battery

No pollution, no memory effect. As the predecessor of Li-ion, the lithium battery is prone to short-circuit due to the formation of dendrites, which reduces its application fields: Li-ion does not contain cadmium, lead, mercury and other elements that pollute the environment; some processes (such as sintering ) Ni-Cd battery has a major disadvantage of "memory effect", which seriously restricts the use of the battery, but Li-ion does not have this problem at all.

5) Small self-discharge

The self-discharge rate of fully charged Li-ion stored for 1 month at room temperature is about 2%, which is much lower than that of Ni-Cd, 25-30%, and 30-35% of Ni-MH.

6) Fast charging

The capacity of 1C charging for 30 minutes can reach more than 80% of the nominal capacity, and the phosphorus iron battery can be charged to 90% of the nominal capacity in 10 minutes.

7) Operating temperature

The operating temperature is -25~45°C, which is expected to be widened to -40~70°C with the improvement of electrolyte and cathode.

Battery Disadvantages:

senescence

Unlike other rechargeable batteries, the capacity of lithium-ion batteries decays slowly, which is related to the number of uses and temperature. This phenomenon of decay can be expressed as a decrease in capacity or an increase in internal resistance.

Because it is related to temperature, it is easier to reflect in electronic products with high operating current. Replacing graphite with lithium titanate appears to increase life. Storage temperature and capacity are permanent

The relationship of loss velocity:

Recovery rate

About 1% of new factory products need to be recycled for various reasons.

intolerance to overcharge

When overcharged, the excess intercalated lithium ions are permanently fixed in the lattice and cannot be released anymore, resulting in short battery life.

intolerance to overdischarge

During overdischarge, the electrode deintercalates too many lithium ions, which can lead to lattice collapse and shorten life.