This LFP-S03 result is less about pushing the highest possible number and more about showing a clean, repeatable platform. The supplied chart reports 155.13 mAh/g and 96.86% first-cycle efficiency at 15.6 mg/cm2 loading in a lithium-metal 2320 coin cell. The value of that combination is obvious to anyone who has had to balance a practical cathode build: LFP is useful when the voltage behavior is stable, the plateau is clean, and the loading is already in a region that looks closer to real electrode work than to a powder demo.
Why LFP Still Deserves Its Own Page
LFP sits in a different part of the cathode conversation from LMR or LCO. It is not trying to win on ultra-high voltage or on a near-300 mAh/g headline. Its strength is the flat voltage plateau around 3.4 V and the way that plateau tends to stay orderly when the material and the electrode build are both behaving well. That makes this dataset especially useful for qualification work, where the question is not only “how much capacity?” but also “does the profile stay calm when the cell is assembled at a realistic loading?”
| Parameter | Reported condition or result |
|---|---|
| Sample | LFP-S03 lithium iron phosphate cathode |
| Cell format | 2320 coin cell, lithium-metal half cell |
| Counter electrode | Lithium metal |
| Electrolyte | Carbonate-based electrolyte |
| Voltage range | 2.0-3.65 V |
| Charge / discharge rate | 0.1C / 0.1C |
| Test temperature | 25 +/- 1 C |
| Reported specific capacity | 155.13 mAh/g |
| Reported first-cycle efficiency | 96.86% |
| Electrode loading | 15.6 mg/cm2 |
How to Read the Plateau
The plot shows the long, flat region that researchers look for when they want predictable cathode behavior. In a practical battery workflow, that plateau matters because it simplifies matching, makes voltage behavior easier to interpret, and supports a safer-feeling operating window than many higher-energy chemistries. The reported 96.86% first-cycle efficiency is especially encouraging because it says the first charge and discharge stay close together even at the stated loading.
The 15.6 mg/cm2 loading is also important. It keeps the result from reading like a very thin proof-of-concept electrode. At this mass loading, wetting, compression, and coating uniformity begin to matter more, which is exactly why a stable LFP plateau at this level is useful to document. Using the active-material estimate, the result corresponds to about 2.42 mAh/cm2, which is a sensible number for later anode pairing.
What This Result Supports
| Question | Why it matters |
|---|---|
| Does the plateau stay flat? | A long 3.4 V plateau is the signature that makes LFP useful for stable chemistry and predictable voltage behavior. |
| Is high efficiency preserved at practical loading? | 96.86% first-cycle efficiency suggests the electrode is behaving cleanly rather than suffering from excessive first-cycle loss. |
| What is the practical areal capacity? | About 2.42 mAh/cm2 is a useful design number for matching to an anode or a later full-cell build. |
| Does the curve already prove a product-ready cell? | No. It is a half-cell baseline that still needs repeat testing, higher-rate data, and full-cell balancing. |
For a next step, compare this sample against other lithium-ion cathode electrode sheets so loading basis, collector choice, and coating route stay explicit. If the goal is to move from a single LFP screening result to a custom build, a customized electrode-sheet request should name the target loading, side, thickness, current collector, and the intended full-cell match.
Where It Fits in the Workflow
The next experiment should repeat the LFP condition, then add rate capability, longer cycling, and impedance tracking. Use battery test equipment and instruments that can keep the same 3.65 V upper cut-off, current profile, rest steps, and export rules across the comparison set. A 5 V multi-channel coin-cell tester is a practical choice for this voltage window, and the broader Battery Research hub helps connect material screening, electrode preparation, and validation reporting.
When the project is ready to move beyond half-cell screening, a lithium-ion dry pouch-cell platform becomes the natural next format, but only after the cathode loading, anode capacity, N/P target, electrolyte amount, and formation protocol are set together. That keeps the result anchored to what this page actually proves.
Publication Boundary
This article should be published as a technical interpretation of the supplied LFP-S03 half-cell curve. It may state the loading, capacity, efficiency, plateau behavior, voltage range, rate, temperature, and electrolyte description. It should not claim full-cell performance, safety behavior, or long-term retention without more evidence. For a comparable LFP electrode or test plan, specify the loading basis, coating process, current collector, anode chemistry, N/P target, electrolyte, and validation objective.