Ultra-long life battery

----Guoan Energy Technology (Dongguan) Co., Ltd. R&D Center

I. Cycle Life

This refers to the ratio of the corresponding capacity obtained by charging and discharging the battery with a certain charging and discharging current. For example, the national standard for ordinary lithium batteries (cobalt, ternary, etc.): at room temperature of 25℃, after 400 cycles of charging and discharging at 0.2C, the remaining capacity is 80% or more of the initial capacity. Industry standards (industry requirements) are far greater than national standards, maintaining more than 80% of the initial capacity, and can reach 500, 800, 1000, 2000 or more. However, there is a type of battery that can reach 20,000 to 25,000 cycles rapidly.

Let's learn about this battery: The performance improvement of lithium titanate (LTO) batteries is a comprehensive reflection of the improvement of the performance of individual materials and the organic integration of various key materials. In response to the requirements of fast charging and long service life, in addition to the negative electrode material, other key raw materials of lithium-ion batteries (including positive electrode materials, diaphragms, and electrolytes) must also be considered, and combined with special engineering process experience, the "non-bulging" lithium titanate LpTO battery product was finally formed, and mass application in electric buses was achieved for the first time. Test data show that under the conditions of 6C charging, 6C discharging, and 100% DOD, the cycle life of a single lithium titanate LpTO battery exceeds 25,000 times, the remaining capacity exceeds 80%, and the gas generation phenomenon of the battery cell is not obvious, which does not affect its life; while the actual application of Chongqing fast-charging pure electric buses also shows that after the battery is assembled, the electrical performance is also excellent, which can ensure the daily commercial operation of pure electric buses.

Lithium titanate batteries are a new type of lithium-ion battery with super safety, ultra-high rate, and ultra-long cycle life. It only takes a few minutes to charge to more than 80% of the load, and lithium titanate batteries have good over-discharge and anti-reverse charging characteristics. Even in the event of accidental overcharging, reverse charging, or short circuit, lithium titanate batteries will never explode or catch fire.

1. Revolutionary explosion-proof packaging process, excellent safety performance, can be used without lithium battery protection board

2. Fast charge and discharge characteristics, good high and low temperature performance, ultra-long cycle life

3. Cycle life: 0.5C charge & 0.5C discharge, 100% DOD, 25℃ ﹥25000 cycles with 80% initial capacity

1C charge & 1C discharge, 100% DOD, 25℃ ﹥20000 cycles with 80% initial capacity

1C charge & 2C discharge, 100% DOD, 55℃﹥4000 cycles with 80% initial capacity

5. Operating temperature range: -50℃～+65℃ battery cell temperature

6. High-temperature discharge performance (1C): 65℃≧100%* initial capacity

7. Low-temperature charging performance (1C): -20℃ charging capacity ≥85%* initial capacity

-40℃ charging capacity ≥60%* initial capacity

8. Low-temperature discharge performance (1C): -20℃ discharge capacity ≥70%* initial capacity

-40℃ discharge capacity ≥60%* initial capacity

----Guoan Energy Technology (Dongguan) Co., Ltd. R&D Center