PR96677

NINGDE, China, June 23, 2022 /PRNewswire=KYODO JBN/ --

On June 23, CATL launched Qilin, the third generation of its CTP (cell-to-pack)

technology. With a record-breaking volume utilization efficiency of 72% and an

energy density of up to 255 Wh/kg, it achieves the highest integration level

worldwide so far, capable of delivering a range of over 1,000 km in a breeze.

Focusing on the very nature of electrochemistry, CATL continues its endeavor to

push beyond the boundaries of innovations in system structure. In 2019, CATL

launched the world's first module-less battery pack CTP, taking the lead in

achieving a volume utilization efficiency of over 50%. Together with overall

breakthroughs in the core process, algorithm and materials, CATL redefines

battery structure design with "Qilin," which is named after a legendary

creature in Chinese mythology.

Function Integration. In the CTP 3.0 battery, the internal crossbeam,

liquid-cooling plate and thermal pad have been integrated into a

multifunctional elastic interlayer. It also features built-in micron bridges

inside the interlayer, which flexibly accommodate the changes inside the cell,

improving the battery reliability throughout its full life cycle. The

integrated energy unit, which is composed of the cell and the multifunctional

elastic interlayer, builds a more stable load bearing structure perpendicular

to the driving direction, thus enhancing the shock and vibration resistance of

the battery pack.

Reshaping system structure. Powered by its precise computing and AI simulation

capabilities, CATL explores the boundaries of battery design involving the

battery's full life cycle application scenarios. The ingenious bottom sharing

design allows the smart arrangement of various components including structural

protection, high-voltage connection and a protective vent for thermal runaway,

further increasing the battery capacity by 6%. Meanwhile, the CTP 3.0 battery

satisfies the criteria of the battery safety tests required by national

standards such as the bollard test.

Disruptive Water Cooling Design . By placing liquid cooling functional parts

between adjacent cells, the trailblazing large-surface cell cooling technology

increases the heat transfer area by four times, cuts thermal control time in

half, and supports a hot start in 5 minutes and fast charging in 10 minutes. It

enables the cell to cool down rapidly in extreme circumstances, effectively

preventing abnormal thermal conduction among cells. Moreover, it has achieved

thermal stability and thermal safety for all chemical systems, making it

compatible with materials with higher energy density.

From the material, cell to system structure, the systematic engineering mindset

runs through the whole chain of research and development in CATL. Supported by

the above-mentioned technological innovations, the CTP 3.0 battery can increase

the energy density to 255Wh/kg for ternary battery systems, and 160Wh/kg for

LFP battery systems. With the same chemical system and the same pack size, it

can deliver 13% more power than the 4680 battery, accomplishing an all-round

improvement in range, fast-charging, safety, service life, efficiency and

low-temperature performance.

The CTP 3.0 batteries, or Qilin, are expected to be mass produced and come on

the market in 2023. From simulated computing in the micro world to artful

streamlining inside the battery structure, CATL remains focused on

technological ingenuity and independent innovation, aiming to promote the

overtaking of fossil fuel vehicles by electric ones.

SOURCE:  Contemporary Amperex Technology Co., Limited

Image Attachments Links:

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   Caption: 5min Hot Start 10min Fast Charging

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   Caption: CTP 3.0 Qilin Battery vs. 4680

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   Caption: CTP 3.0 Qilin Battery Performance