Name: Electrolytic manganese dioxide (γ crystal form)-High Activity
Brand: Canrud
Price: 24.16 USD

Question 1

Accepted Answer

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

Question 2

Accepted Answer

Use high-nickel specific PVF

Question 3

Accepted Answer

It can function as an anode, but generally exhibits poor cycling stability and rate performance. Performance depends on voltage window and requires experimental validation.

Question 4

Accepted Answer

Single-crystal has a higher tap density and higher energy density; polycrystalline has better rate performance.

Question 5

Accepted Answer

Single-crystal material, recommended formulation, 811: SP:PVDF (high-nickel anti-gel) = 90:5:5. Before testing the electrodes should be roll-pressed; recommended compaction ≥ 2.5

Question 6

Accepted Answer

We don't have more cycling data updates for now; we will test and complete them later.

Question 7

Accepted Answer

We are very sorry — we really don't know. These two materials are both produced by companies that rank among the top three in the industry; they do not disclose any production technical details externally.

Question 8

Accepted Answer

The customer can make the slurry themselves; we cannot do it at present.

Question 9

Accepted Answer

You can try ball-milling the LATP powder in anhydrous ethanol or isopropanol to increase the powder surface activity, then dry it before pressing and sintering. Alternatively, add a PVA binder solution; this requires adding a drying temperature hold and a binder burn-out hold during the sintering process, for example 100°C for 1 h and 500°C for 1 h, then raise to the sintering temperature. This is for reference only; specific parameters need experimental investigation.

Question 10

Accepted Answer

You can use 523: SP:PVDF = 90:5:5

Question 11

Accepted Answer

We really haven't tested the hardness of the powder material.

Question 12

Accepted Answer

It's because of conductivity issues. Cathode materials themselves have poor conductivity, so they are generally coated.

Question 13

Accepted Answer

Yes, their crystal structures are the same.

Question 14

Accepted Answer

We really haven’t tested hardness for the powder material.

Question 15

Accepted Answer

It is single crystal

Question 16

Accepted Answer

[Powder Pressing Method] Dry powder is placed into a steel die and pressed at 250–500 MPa to form a green body, then sintered in a muffle furnace in air atmosphere at about 900°C for 3–24 hours. After sintering and cooling, the ceramic discs are ground. The green body pressing may include a binder or not, and may include a sintering aid or not. Binders used include PVA, PVB, etc.; sintering aids include boron oxide, lithium borate, and similar. Note that if a binder is added, the sintering must be staged to allow binder burn-out; otherwise the carbon content will be too high.

Question 17

Accepted Answer

The ternary electrolyte from the official website

Question 18

Accepted Answer

All are commercial cathode materials

Question 19

Accepted Answer

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 20

Accepted Answer

All finished ternary materials (111 523 622 811 series 9xx) are coated; the coating is an oxide. Specific compositions vary by manufacturer and are strictly confidential, not disclosed externally

Question 21

Accepted Answer

The ionic conductivity of the solid electrolyte can be tested directly on pressed pellets. When assembling an all-solid-state battery, it is often mixed with the cathode in a certain ratio to form a composite cathode and is not used directly as the electrolyte layer. The electrolyte layer commonly uses LPSC, the anode uses a lithium–indium alloy, and a mold cell is assembled.

Question 22

Accepted Answer

Haven't tested it, but judging from the structural formula, the material's electrochemical stability should be fine.

Question 23

Accepted Answer

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

Question 24

Accepted Answer

PEO/LiTFSI system, solvent is NMP, EO:Li controlled at a molar ratio of 10–20, operate in a glovebox, spread the prepared slurry evenly in a mold, air-dry naturally and then peel off. A molar ratio of 20 should form and peel off; other components should be adjusted based on your experimental focus and literature.

Question 25

Accepted Answer

Cathodes are generally universal; it depends on system pairing and performance requirements. Currently commonly used are nickel–cobalt–manganese ternary (NCM) and lithium iron phosphate (LFP). LFP offers high safety and long cycle life but has moderate energy density and poor conductivity. NCM has higher energy density and better cycling stability and is an important development direction for solid-state battery cathodes, but high-nickel safety issues still need to be addressed. NCM811 for solid-state use requires coating treatment; there are existing niobate-coated NCM811 and borate-coated NCM811 options, which can be selected according to experimental needs.

Question 26

Accepted Answer

For our sodium nickel manganese iron oxide we use our own 12 4 2 separator. For the hard carbon capacity tests, our testing procedure is: rest 2 h, 0.2C DC to 0 V, 0.1C DC to 0 V, 0.01C DC to 0 V, 10 μA DC to 0 V, rest 3 min, 0.1C CC to 2 V.

Question 27

Accepted Answer

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.

Electrolytic manganese dioxide (γ crystal form)-High Activity

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