Name: NCM811 Electrode (SY31XX)
Brand: Canrud
Price: 75.51 USD

Question 1

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If the electrode sheet parameters are provided, it can be calculated.

Question 2

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Graphite

Question 3

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It has not been lithiated; it is just a regular graphite anode electrode.

Question 4

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The ternary electrolyte from the official website

Question 5

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Aluminum foil

Question 6

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Our graphite electrode test results are on the official website

Question 7

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SBR CMC

Question 8

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Lithium cobalt oxide (high-voltage type) - Z-4.45V

Question 9

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The LATP side faces the positive electrode. LATP is easily reduced by lithium metal.

Question 10

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Conductive carbon: SP, CNT; binder: PVDF-5130

Question 11

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The electrode foil is a double-sided carbon-coated aluminum foil; the other side is coated with a carbon layer

Question 12

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We have a recommended compacted density value on our official website for the customer to refer to; if they want to achieve a compacted density within this range, the customer needs to verify it themselves to see the effect after pressing. Calendering according to a compacted density provided by the customer requires customization.

Question 13

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Sulfide and halide electrolyte systems can use lithium-indium as the negative electrode, but oxide systems are more suitable for graphite and low-silicon negative electrodes.

Question 14

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KS-6 itself is a conductive agent and is generally not used as a negative electrode active material. If it were to be used as a negative electrode active material, it should not be necessary to add Super P.

Question 15

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Yes

Question 16

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There is related data in the electrode sheet parameters on the official website

Question 17

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LiFePO₄ has low conductivity. Carbon-coated aluminum foil reduces internal resistance, improves adhesion, and helps prevent electrode cracking.

Question 18

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The electrode interface of the electrochemical workstation from Shanghai Chenhua is like this, and it’s different from this connector,

Question 19

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Punched sheet weight * active material ratio (96%) = weight of the active material

Question 20

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Yes, the NCM811 pole piece mentioned in the official website is a positive material.

Question 21

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Use metallic lithium as the reference electrode

Question 22

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Yes, nickel cobalt manganese NCM811 (single crystal) is powder.

Question 23

Question 24

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Inference based on information in the knowledge base.)

Question 25

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Causes include high surface area materials absorbing binder, low solid content, fast solvent evaporation, insufficient binder, and excessive coating thickness. Solutions involve formulation and process optimization.

Question 26

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Conventional cathode and anode sheets and ceramic sheets form the battery, and there are contact interfaces that require adding a small amount of electrolyte to wet the interfaces. However, if the ceramic sheet surface is treated together with the cathode and anode material processes so that the electrode materials make better contact with the electrolyte sheet, electrolyte wetting of the interface is not necessary.

Question 27

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Possible reasons include: 1) air bubbles in slurry (vacuum degassing recommended); 2) foreign particles introduced during mixing or coating; 3) foreign materials acting as foaming agents; 4) insufficient slurry dispersion.

Question 28

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The specific effect also needs to be combined with experimental verification.

Question 29

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After rolling, the electrodes will all exhibit this curling when electrolyte is dropped on them. Suggested improvements: 1) When baking the punched electrodes, press them flat with a plate while baking; 2) Optimize the assembly method. We usually place the electrode on the spacer, drop the electrolyte, and then cover it with the separator, which also makes subsequent assembly easier.

Question 30

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Typically caused by assembly issues. Verification can be done using standard commercial materials. Factors include slurry uniformity, separator thickness, electrolyte wetting, rest time, and electrode consistency.

Question 31

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Wetting is affected by electrolyte composition, viscosity, amount, electrode density, temperature, time, and vacuum conditions. Solutions include using low-viscosity solvents, adjusting salt concentration, increasing electrolyte volume, reducing electrode density, and applying vacuum or elevated temperature aging.

Question 32

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The lithium foil diameter is determined by the diameter of the electrode and the separator. The lithium foil diameter should be larger than the electrode diameter and smaller than the separator diameter. The greater the differences among these three diameters, the easier assembly and better contact for the coin cell. The internal total thickness of a 2032 coin cell case needs to reach about 3.2 mm; any shortfall can be filled with shims. The main thing is to choose the diameter.

Question 33

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Compared with polycrystalline cathode materials, single-crystal cathodes have somewhat poorer conductivity; you need to increase the conductive additive content based on their standard formulation. Alternatively, if you do not want to raise the total conductive additive content, you can replace part of the conductive carbon with CNTs.

Question 34

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Nickel cobalt manganese NCM811 (single crystal) does not belong to hazardous chemicals. This conclusion is inferred based on the information available in the knowledge base.

Question 35

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The active material ratio of NCM811 pole piece is generally 96%, which is the typical formula in the current industrial soft pack battery.

Question 36

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Yes, nickel cobalt manganese NCM811 (single crystal) belongs to ultra-high nickel material, its nickel content is 83%.

Question 37

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We don't have data on this anode material, but based on graphite, the electrode sheet color varies at different states of charge. You can ask the customer to perform an experiment: charge to different states, then disassemble the cell and observe

Question 38

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According to the available information, the shelf life of NCM811 precursor is usually 1 year, which is subject to the product description.

Question 39

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Nickel-cobalt-manganese NCM811 (single crystal) is recommended for vacuum baking before use to remove moisture absorption and ensure its performance, but the specific vacuum baking parameters need to be determined according to actual application requirements.

Question 40

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RRDE, short for the Rotating Ring-Disk Electrode (Rotating Ring-Disk Electrode), is a special electrode device for electrochemical research, capable of simultaneously measuring the main reaction (occurring on the disk electrode) and detecting the intermediate product (captured by the ring electrode). Although the term is not directly mentioned in the provided document, it belongs to advanced electrochemical characterization techniques and is often used in reaction mechanism studies. This conclusion is based on common knowledge in the field of expertise.

Question 41

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Yes, NCM811 (single crystal) needs to be dried before use. It is recommended to bake at 100 ℃ for 12 hours.

Question 42

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The structure of the lithium–indium alloy foil is an indium sheet sandwiching lithium powder; alloying occurs under applied pressure during use. The negative electrode interface of the lithium–indium alloy does not deteriorate because indium reduces SEI formation and volume expansion, and the growth of lithium dendrites and lithium–indium dendrites differs: lithium dendrites grow vertically through the interface, while lithium–indium dendrites grow in a striped, lateral manner, making them denser and more uniform than lithium dendrites.

Question 43

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The theoretical specific capacity of NCM811 (including single crystal forms) is about 275-280 mAh/g.
The "single crystal" does not affect the theoretical capacity, but only improves the cyclability and structural stability.
The actual usable capacity is usually 180-200 mAh/g, which is limited by the charge cut-off voltage and material stability.

Question 44

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The coating component is lithium niobate (LiNbO3), which is used for surface coating of single crystal NCM811.

Question 45

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NCM811 can be used with LPSC electrolyte after coating treatment. This is in line with the recommended mix of sulfide systems. This conclusion is based on knowledge base content inference.

Question 46

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Which system do you want to work on? Sulfide or oxide? For oxide systems use LLZO; for sulfide systems use LPSC.

Question 47

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According to the knowledge base, the model number MA-EN-CA-0025 nickel cobalt manganese NCM811 is an uncoated product model.

Question 48

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It can be used after drying, but there may be some effects: capacity might decrease and internal resistance may increase.

Question 49

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Yes, the nickel-cobalt-manganese NCM811 precursor-A needs to be mixed with other lithium sources before use and subjected to high-temperature sintering treatment to form an electrochemically active cathode material. The direct use of the precursor cannot exert its function as a positive electrode material.

Question 50

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NCM811 pole piece (SY33XX) can be matched with SM02XX graphite negative pole piece. This is inferred from the recommendations in the product details.

Question 51

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NCM811 coated with lithium niobate, the product name is "solid electrolyte coated nickel cobalt manganese NCM811", model MA-EN-CA-0045.

Question 52

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According to the knowledge base, nickel-rich cathode materials mainly refer to high nickel ternary materials, including:
-NCM811 (nickel-cobalt-manganese ratio 8:1:1)
-701515 type (nickel content is 70%)

These materials belong to the nickel cobalt lithium manganate (NMC) system, and the specific capacity and energy density of the material are improved by increasing the nickel content, which is one of the key development directions in the field of power batteries.

Question 53

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Currently there is niobate-coated NCM811 and lithium borate-coated NCM811; niobate-coated NCM811 is used more widely and feedback is good. There are fewer usage data for lithium borate-coated NCM811.

Question 54

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According to the knowledge base, the high nickel positive electrode powder referred to may be a ternary nickel-rich material, such as NCM811 or NCA, but the specific model is not explicitly given in the text.

Question 55

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According to the general principles of battery material processing and the processing requirements of similar materials in the knowledge base, lithium nickel cobalt manganate NCM811 single crystal may need to be dried before use, in order to avoid the performance degradation of the material due to moisture absorption or unnecessary reaction with the electrolyte. This conclusion is a reasonable inference based on the available information.

Question 56

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Ceramic coated PE separator or PP/PE/PP trilayer composite separator is recommended for liquid NCM811 batteries to balance high energy density with safety requirements. This is a reasonable inference based on the existing knowledge base of diaphragm performance requirements and application trends.

Question 57

Accepted Answer

Yes, NCM811(SY33XX) is matched with graphite negative pole piece.
The manufacturer clearly pointed out that the positive electrode can be used with SM02XX, LT01XX, SC01XX and other graphite-based negative pole pieces, and from the electrochemical performance point of view, NCM811 positive electrode and graphite negative electrode belong to the conventional, compatible battery system combination, suitable for button battery or small-scale experimental testing. Therefore, the two can be used safely and effectively.

Question 58

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The content of transition metal in nickel cobalt manganese NCM811 precursor-A is 83% nickel, 11% cobalt, 6% manganese. This is an inferred result based on the chemical formula.

Question 59

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I don't know what is the standard specific capacity of NCM811 single crystal in the voltage range of 3.0-4.3V. If you can provide more relevant information or data sources, I may be able to better answer your question.

Question 60

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According to the electrolyte information in the knowledge base, it is speculated that the shelf life of the nickel-cobalt-manganese NCM811 (polycrystalline)-C battery system is about 6 months. However, the specific shelf life needs to be further confirmed in combination with the actual storage conditions and packaging methods.

Question 61

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The recommended storage method for nickel-cobalt-manganese NCM811 (single crystal) is to keep it in a dry and sealed environment, while avoiding high temperature and direct light. These measures can effectively prevent the material properties from being affected.

Question 62

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LATP is stable with most cathodes; NCM811, LFP, and LCO all work. For the anode use graphite or low-silicon anodes; do not use lithium metal — LATP is unstable with lithium, and the titanium is easily reduced.

Question 63

Accepted Answer

The conventional storage method of nickel-cobalt-manganese NCM811 (single crystal) is sealed and kept in a cool and dry place. Generally, it does not need to be placed in a glove box unless there are special experiments or process requirements to isolate air and moisture.

Question 64

Accepted Answer

The knowledge base does not provide the theoretical specific capacity of nickel-cobalt-manganese NCM811 (single crystal), only that its first discharge capacity is ≥ 190.0 mAh/g, and the measured value is 201.3 mAh/g.

Current collector areal density (mg/cm²)	3.40
Electrode size	10*10
Current collector thickness (µm)	12 (Aluminum foil)
Active material ratio	94.5%
Compatible electrode type for full cells (N/P ratio)	None (Customization is available upon request).
Pack density (g/cc)	2.50-3.35 (Compaction value not provided for unrolled electrode sheets; calculate it yourself)
Active material	Nickel-Cobalt-Manganese NCM811 (Single Crystal)
Shelf life	6 months (vacuum sealed). Use within one month of opening.
Recommended electrolyte	KLD-1230C
Electrode name	NCM811 electrode sheet
Electrode number	SY31XX
Active material specific capacity (mAh/g)	188(3.00-4.30V)
Test conditions description	At room temperature (25℃), let stand for 4 hours, charge at a 0.1C rate (constant current) to 4.30V, charge at 4.30V constant voltage to 0.02C, let stand for 3 minutes, discharge at a 0.1C rate (constant current) to 3.00V, and let stand for 3 minutes.
Test condition	At room temperature (25℃), 0.1/0.1C, 2.50-4.20V
Areal capacity (mAh/cm²)	3.82
Coating areal density (mg/cm²)	21.50 (tolerance ±2.0%)
Usage recommendations	1. If the electrode sheet is not rolled, it generally needs to be rolled before punching and baking (the compaction density can be referenced from the minimum value in the "Compaction Density" column of this table); 2. Baking conditions: 85-105℃ for 4 hours (if vacuum baking, two air changes are required); 3. The areal density needs to be determined based on the actual weight of each small disc.

NCM811 Electrode (SY31XX)

Details