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Zhong Wen
Fan Hui Lie Biao
CATL Unveils Its Latest Breakthrough Technology by Releasing Its
First Generation of Sodium-ion Batteries
7/29/2021
Contemporary Amperex Technology Co., Ltd. (CATL) successfully held
its first online launch event "Tech Zone" on July 29. Dr. Robin Zeng,
chairman of CATL, unveiled the company's first-generation sodium-ion
battery, together with its AB battery pack solution - which is able
to integrate sodium-ion cells and lithium-ion cells into one pack -
at the event. As another milestone of CATL in the exploration of
basic science and technology, sodium-ion batteries will provide a new
solution for the use of clean energy and transportation
electrification, thus promoting the early realization of the goal of
carbon neutrality.
2. Ceng Yu Qun Bo Shi Zhu De Shi Dai Chuang Shi Ren Jian Dong Shi Chang Dr. Robin Zeng CATL founder and
chairman.png
Dr. Robin Zeng, founder and chairman of CATL
Breaking through the bottleneck of sodium-ion battery technology
As carbon neutrality has become a global consensus, the new energy
industry has entered a complex and diversified development stage. The
increasingly segmented markets have raised differentiated
requirements for batteries. At the same time, the worldwide research
and development of basic materials for batteries is accelerating,
which opens a two-way window for the industrialization of sodium-ion
batteries.
The sodium-ion battery has a similar working principle to the
lithium-ion battery. Sodium ions also shuttle between the cathode and
anode. However, compared with lithium ions, sodium ions have a larger
volume and higher requirements regarding structural stability and the
kinetic properties of materials. This has become a bottleneck for the
industrialization of sodium-ion batteries.
CATL has been dedicated to the research and development of sodium-ion
battery electrode materials for many years. In terms of cathode
materials, CATL has applied Prussian white material with a higher
specific capacity and redesigned the bulk structure of the material
by rearranging the electrons, which solved the worldwide problem of
rapid capacity fading upon material cycling. In terms of anode
materials, CATL has developed a hard carbon material that features a
unique porous structure, which enables the abundant storage and fast
movement of sodium ions, and also an outstanding cycle performance.
Based on a series of innovations in the chemistry system, CATL's
first generation of sodium-ion batteries has the advantages of
high-energy density, fast-charging capability, excellent thermal
stability, great low-temperature performance and high-integration
efficiency, among others. The energy density of CATL's sodium-ion
battery cell can achieve up to 160Wh/kg, and the battery can charge
in 15 minutes to 80% SOC at room temperature. Moreover, in a
low-temperature environment of -20degC, the sodium-ion battery has a
capacity retention rate of more than 90%, and its system integration
efficiency can reach more than 80%. The sodium-ion batteries' thermal
stability exceeds the national safety requirements for traction
batteries. The first generation of sodium-ion batteries can be used
in various transportation electrification scenarios, especially in
regions with extremely low temperatures, where its outstanding
advantages become obvious. Also, it can be flexibly adapted to the
application needs of all scenarios in the energy storage field.
Four-pillar innovation system in support of three strategic
development directions
CATL has always been committed to being a global premier innovative
technology corporation and delivering excellent contributions to the
green energy resolution for mankind as its vision. To achieve its
vision, CATL is making unremitting efforts in three strategic
development directions. The first development direction is to replace
stationary fossil energy with renewable energy generation and energy
storage; the second is to replace mobile fossil energy by using EV
batteries to accelerate the development of E-mobility; the third is
to promote the integration innovation of market applications
leveraging electrification plus intelligence to accelerate the drive
towards new energy applications in different fields. To support
sustainable development in these three development directions, CATL
has established a four-pillar innovation system, namely in the
chemistry system, structure system, manufacturing system and business
models, to build a rapid transformation capability from fundamental
research to industrial application, and then to large-scale
commercialization.
1. Ceng Yu Qun Bo Shi Zhu De Shi Dai Chuang Shi Ren Jian Dong Shi Chang Dr. Robin Zeng CATL founder and
chairman.png
Dr. Robin Zeng, founder and chairman of CATL
The fundamental research of material and the chemistry system is of
great importance. Dr. Robin Zeng, chairman of CATL, has said that
some people believe that the battery chemistry system will hardly see
any more breakthroughs, and that only improvements can be made in the
physical structure system. But we believe that the world of
electrochemistry is like the Energy Cube, where there are still a lot
of unknowns for us to discover. We never get tired of exploring its
mysteries. By using a high-throughput calculation platform and
simulation technology, based on our deep understanding of principles
combined with the application of advanced algorithms and computing
capacity, we engage in an in-depth exploration to develop a chemistry
system that is most suitable for sodium-ion batteries, enable them to
enter the fast track to industrialization, and continuously evolve.
The next generation of sodium-ion batteries' energy density
development target is to exceed 200Wh/kg.
In terms of battery system innovation, CATL has made another
breakthrough in battery system integration and developed an AB
battery system solution, which is to mix and match sodium-ion
batteries and lithium-ion batteries in a certain proportion and
integrate them into one battery system, and control the different
battery systems through the BMS precision algorithm. The AB battery
system solution can compensate for the current energy-density
shortage of the sodium-ion battery, and also expand its advantages of
high power and performance in low temperatures. Thanks to this
innovative structure system, application scenarios for the
lithium-sodium battery system are expanded.
Multi-dimensional deployment to promote the industrialization of
sodium-ion batteries
At the event, Dr. Qisen Huang, deputy dean of the CATL Research
Institute, said that sodium-ion battery manufacturing is perfectly
compatible with the lithium-ion battery production equipment and
processes, and the production lines can be rapidly switched to
achieve a high-production capacity. As of now, CATL has started its
industrial deployment of sodium-ion batteries, and plans to form a
basic industrial chain by 2023. CATL invites upstream suppliers and
downstream customers, as well as research institutions to jointly
accelerate the promotion and development of sodium-ion batteries.
3. Huang Qi Sen Bo Shi Zhu De Shi Dai Yan Jiu Yuan Fu Yuan Chang Dr. Qisen Huang, deputy dean of CATL
Research Institute.png
Dr. Qisen Huang, deputy dean of CATL Research Institute
Dr. Robin Zeng said that carbon neutrality has spawned a demand for
TWh-scale batteries and has promoted the vigorous development of the
new energy industry. The continued emergence of application demands
has given an opportunity to showcase the capabilities of different
technologies. Diversified technical routes will also assure the
stability of the industry's long-term development.
4. Zhu De Shi Dai Di Yi Dai Na Chi Zi Dian Chi CATL first-generation sodium-ion
battery.jpg
CATL's first-generation sodium-ion battery
5. Di Yi Dai Na Chi Zi Dian Chi Xing Neng You Shi key Advantages of CATL's first-generation
sodium-ion battery performance.png
Advantages of the first-generation sodium-ion battery performance
Fan Hui Lie Biao
Next:
CATL Donates 25 mln Yuan to Flood Rescue and Reconstruction Work in
China's Henan Province
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