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Lithium-Ion Battery SEI Layer Growth & Parabolic Capacity Fade Calculator

Easily calculate and compute lithium-ion battery sei layer growth & parabolic capacity fade calculator with accurate equations, live formulas, and expert guidance.

Fresh cell capacity (e.g. 5 Ah 21700 cell).

Diffusion-limited solvent reduction constant.

Total elapsed calendar storage duration.

Calculated Result
95.4 %

State of Health (SOH)

State of Health (SOH)

95.4 %

State Of Health Soh Percent

95.4

Remaining Capacity Ah

4.77

Cumulative Sei Capacity Loss Ah

0.23

Calendar Fade Percentage

4.6

95.4 — %

Calculation Breakdown

  1. Applied FormulaModels calendar capacity fade in lithium-ion battery cells caused by diffusion-limited solid electrolyte interphase (SEI) layer growth on graphite anodes.\Delta Q_{\text{SEI}} = k_{\text{SEI}} \sqrt{t}, \quad \text{SOH} = \frac{C_0 - k_{\text{SEI}}\sqrt{t}}{C_0}

Battery SEI Capacity Fade Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.024487295State of Health (SOH)

What Is the Lithium-Ion Battery SEI Layer Growth & Parabolic Capacity Fade Calculator?

This tool computes lithium-ion battery sei layer growth & parabolic capacity fade calculator with high precision arithmetic.

How Does the Lithium-Ion Battery SEI Layer Growth & Parabolic Capacity Fade Calculator Work?

Models calendar capacity fade in lithium-ion battery cells caused by diffusion-limited solid electrolyte interphase (SEI) layer growth on graphite anodes.

Lithium-Ion Battery SEI Layer Growth & Parabolic Capacity Fade Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

ΔQSEI=kSEIt,SOH=C0−kSEItC0\Delta Q_{\text{SEI}} = k_{\text{SEI}} \sqrt{t}, \quad \text{SOH} = \frac{C_0 - k_{\text{SEI}}\sqrt{t}}{C_0}

Models calendar capacity fade in lithium-ion battery cells caused by diffusion-limited solid electrolyte interphase (SEI) layer growth on graphite anodes.

How to Use the Lithium-Ion Battery SEI Layer Growth & Parabolic Capacity Fade Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Lithium-Ion Battery SEI Layer Growth & Parabolic Capacity Fade Calculator Example

Input Values:

initialNominalCapacityAh:5
seiGrowthRateParameterK:0.012
calendarStorageDays:365
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required %.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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