As a well-known lithium-ion battery manufacturer, Honeycomb Energy has no doubts about its R&D strength. SES Power also applies Honeycomb Energy cells to our products, such as fully intelligent lead-acid replacement products (12V100Ah, 12V200Ah), high current (2000A) start-up lithium battery, UPS high voltage lithium battery system (up to 860V), 3Kw~20Kw off-grid, grid-connected, island lithium battery energy storage system, base station communication backup battery system (standard 19 inches), photovoltaic solar energy + lithium battery storage system energy system, etc. Now let us show you Honeycomb Energy's all-solid-state laboratory, test center and safety laboratory in Wuxi.

　　The battery cell is the "heart" of the electric vehicle power battery. The quality of the battery cell determines the safety, performance, energy, charging capacity and service life of the entire power battery system. The most important ability of an excellent battery company is to develop batteries. For a car, 80% of the cost of the power battery pack comes from the cell (currently it may be more than 85%), and 80% of the cost of the cell is used for the cell material.

　　The core competitiveness of a battery company is to continuously develop and optimize its own products. Let's first take a look at the R&D and testing capabilities of the Hive Energy Innovation Center.

　　A: The role of battery R&D center and testing center

　　For a cell company, the front-end R&D center not only needs to test cell samples, but also needs to have material R&D, technical experiments and small-scale trial production capabilities in the R&D process, and gradually stabilize cell prototype samples. down and finalize performance.

　　The battery prototypes and tests produced by the R&D center are the key for battery engineers and development departments to analyze and understand the battery creation process.

　　The cell R&D center covers the R&D department of cell raw materials, cell structure design, cell sample production line and laboratory for cell testing.

　　The research and development of the ratio of battery raw materials is very important: from the mixing, spraying, drying, pressing, and cutting of the positive electrode material, to the winding and stacking of the positive and negative electrodes of the battery cell, and the separator, and finally to the installation of the casing and the electrolyte. All production links such as injection can be carried out in small batches.

　　(Experimental production line of Honeycomb Energy)

　　The verification test in the research and development process of Honeycomb's battery products mainly includes the physical and chemical properties of positive and negative materials, electrolytes, battery raw materials, electrical properties and safety properties of cells and battery packs.

　　The battery system laboratory mainly conducts research and development on cutting-edge materials such as electrolytes, and has the ability to test positive and negative electrode materials, such as homogenization coating, electrolyte preparation, physical and chemical performance testing, oxidation potential and other electrochemical tests. Taking the classic short-knife L600 battery as an example, according to the experimental analysis of the battery system laboratory, a low-viscosity solvent is selected in the formula of the battery cell, which can improve the fluidity and conductivity in a low-temperature environment, thereby improving the low-temperature charging of long battery cells. It can effectively solve the problem of the sudden drop in cruising range in winter. The electrolyte is also specially added with functional additives. When the battery is charged for the first time, a polymerization reaction can occur at the negative electrode to form a high temperature-resistant film, which can avoid harmful reactions between the negative electrode and the electrolyte, and can improve the safety and enhance the high temperature environment. cycle life. The use of ceramic separators with excellent high temperature resistance and insulation will help to improve the reliability of the cells during acupuncture.

　　B: Equipment is very important:

　　The honeycomb mainly includes several parts in the equipment.

　　Physical and chemical analysis laboratory

　　The physical and chemical analysis laboratory has more than 40 large-scale high-precision equipment, with as many as 131 systematic testing capabilities, which completely cover all the testing needs of material development, battery system development, battery mechanism and safety analysis.

　　This laboratory is mainly responsible for the testing needs of material development, battery system development, battery mechanism and safety analysis. The laboratory uses a "synchronized thermal analyzer-gas chromatography-mass spectrometer" to accurately analyze the oxygen release of materials and optimize the thermal stability of the cells.

　　The internal process control and failure analysis of the battery are completed by industrial CT. The internal structure and defects of the battery, such as alignment, wrinkles, etc., are observed through X-rays. in-depth research.

　　(Electrical performance environmental control equipment)

　　Electrical Performance Laboratory

　　It is mainly responsible for the verification of the electrical properties of battery samples, such as battery capacity, energy, open-circuit voltage and pulse charge-discharge capacity under different charges, long-term cycle life, storage life, self-discharge and other electrical properties to determine whether the designed battery is meet the design requirements.

　　In order to ensure the accuracy of the test, the cell performance test of Honeycomb Energy simulates the actual use conditions, uses a metal splint to simulate the force of the cell in the module or battery pack, and monitors the pressure change during the charging and discharging process. , Pressure data collection. In addition, there is a three-electrode test. The auxiliary voltage channel is used to monitor the voltage of the positive and negative electrodes to metal lithium, to find the battery's extreme use conditions, to avoid the precipitation of metal lithium, and to ensure the safety of the battery.

　　(Honeycomb Energy's battery pack performance test equipment)

　　The battery safety laboratory covers an area of 5000 square meters and has more than 30 sets of equipment. It can perform mechanical, environmental and electrical reliability and abuse tests of battery cells, modules, BMS and battery packs/systems.

　　The purpose of the safety test is to verify the safety of the power battery system in the case of abuse, and the most important purpose is to verify the protection capability of the power battery system and the protection capability of the occupants in the event of a dangerous situation. This

　　Honeycomb Energy has built a complete testing capability in-house with the purpose of quickly verifying all aspects of the battery's safety characteristics.

　　(Overview of the acupuncture experiment)

　　Honeycomb Energy's R&D headquarters in Wuxi is a comprehensive power battery R&D center, which includes solid-state batteries and other technical routes, and has built a number of R&D trial production lines, BMS laboratories, performance laboratories, and safety laboratories. Different customers provide R&D samples, technical services and overall solutions, which are indeed very advanced.