The core technologies and technology sources are as follows:
1. Battery core safety components
Purpose: Used to solve the problem of battery penetration and overcharging
at the same time.
Core technology description: This technology enables the power battery to
form independent protection circuits under overcharging and nail-piercing abuse,
effectively protecting the power battery and ensuring that each safety component
plays its role in different unexpected situations.
Technology source: independent research and development.
2. Single cell conductive sheet
Purpose: Used to solve the problem of battery overcharging.
Core technology description: The power battery provided by this technology
can effectively prevent the conductive sheet from breaking, failing or deforming
during use; improving battery safety performance; on the premise of ensuring
battery safety, the conductive sheet is designed on the top cover to further
reduce Occupies additional battery space and improves battery energy
density.
Technology source: independent research and development.
3. Copper-aluminum composite pole
Purpose: Used to convert copper to aluminum on the negative pole so that
the aluminum bar can be laser welded to the negative pole.
Core technology description: The power battery top cover structure provided
by this technology can convert the negative pole from copper to aluminum, and
can effectively prevent the joint surface between the upper section of the pole
and the lower section of the pole from cracking or even disconnecting, ensuring
the consistency of the connections between batteries. ,reliability.
Technology source: independent research and development.
4. Pole piece roller stretching technology
Purpose: Used to roll-stretch the pole pieces to improve the uniformity of
pole piece extension.
Core technology description: This technology can effectively reduce or even
eliminate the wrinkles of the strip, improve the flatness of the strip, and
increase the compaction density of the pole pieces.
Technology source: independent research and development.
5. High-speed winding technology of pole piece diaphragm
Purpose: To achieve high-speed winding of pole piece separators and reduce
costs.
Core technology description: This technology provides a rolling product
processing device. The processing device includes a rolling needle and a shaping
mechanism. The shaping mechanism includes a movable part, a first acting part
and a second acting part. The outer surface of the rolling needle is provided
with a receiving chamber. Groove; by improving the winding needle and
corresponding mechanical components, the company has achieved good control of
the diaphragm tension while increasing the winding speed.
Technology source: independent research and development.
6. Electrolyte technology for ternary system low impedance products
Usage: used in ternary system products.
Core technology description: This technology provides an electrolyte
formula that can be used in ternary system products, which can form an effective
interface film on both the anode and cathode, so that the battery has a good
storage life and reduces the battery impedance at the same time.
Technology source: independent research and development.
7. Electrolyte technology for ternary system to suppress gas production
Usage: used in ternary system products.
Core technology description: This technology provides an electrolyte
formula that can be used in ternary system products, which can significantly
improve the gas production of the battery system using this formula, and has a
high capacity retention rate and good low-temperature power performance. .
Technology source: independent research and development.
8. A modified negative active material technology
Usage: Used in ternary system products or lithium iron phosphate system
products.
Core technology description: This technology provides a modified negative
active material, which better improves the kinetic performance, storage
performance and cycle life of the battery compared with traditional
technology.
Technology source: independent research and development.
9.Battery pack thermal management technology
Purpose: Used to heat or cool the battery pack.
Core technology description: Battery pack thermal management components
using this technology can effectively improve the cooling efficiency of the
battery pack and ensure the consistency of battery temperature. The company
improves cooling efficiency and achieves heating by setting up thermal
management components.
Technology source: independent research and development.
10. Frame structure of battery module
Purpose: Used to accommodate and fix multiple single batteries and absorb
battery expansion force.
Core technology description: The battery module using this technology uses
a lower case with multiple grids and an upper cover with conductive connectors
and safety valves, so that the space between the cells can be fully utilized and
production efficiency improved; The company improves space utilization by
simplifying the module structure.
Technology source: independent research and development.
11.Module Pack integration technology
Purpose: Used to simplify the battery box structure, increase energy
density, and reduce costs.
Core technology description: This technology allows the battery box and the
cells arranged inside to be bonded through structural adhesive, which can fix
the cells.
Technology source: independent research and development.
12. Fully automatic laser welding machine technology
Purpose: To improve the excellence rate and efficiency of welding process
in battery production.
Core technology description: This technology effectively reduces the
welding temperature, ensures the stability of the welding process, and improves
the welding excellence rate and efficiency; it improves the welding excellence
rate by improving the laser output consistency and the linkage control of
various mechanisms.
Technology source: independent research and development.
13. Battery module assembly technology
Purpose: Used for rapid assembly of battery modules to improve the safety
and reliability of battery modules.
Core technology description: This technology can improve the anti-vibration
stability and electrical connectivity of the battery module, and can quickly
dissipate the heat of the battery, thus improving the safety and reliability of
the battery module.
Technology source: independent research and development.
14. Calculation method of remaining capacity of power battery pack
Purpose: Accurately calculate the remaining capacity of the battery
pack.
Core technology description: This method reduces the error in the
calculation of the remaining capacity of the power battery pack by introducing a
charge correction coefficient and a discharge correction coefficient.
Technology source: independent research and development.
The core technology of Ningde era mainly comes from the technology
accumulation through independent research and development by the technology
research and development team with Wu Kai, Zhao Fenggang, Xiang Yanhuo, Hu
Jianguo, Tang Honghui and others as the core. The professional qualifications,
important scientific research achievements and awards obtained by these five
core technical personnel are as follows:
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