---
title: "Lithium Iron Phosphate Cathode Active Material"
industry: "Manufacture of Batteries and Accumulators"
verification_protocol:
  urn: "URN:CNFX:ME:LITHIUM_IRON_PHOSPHATE_CATHODE_ACTIVE_MATERIAL"
  data_integrity_hash: "d38bd6ce7c052bfb46552e170c1e8822"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:LITHIUM_IRON_PHOSPHATE_CATHODE_ACTIVE_MATERIAL"
  data_source_uri: "https://cnfx.com/llms/industry/manufacture-batteries-accumulators/product/lithium-iron-phosphate-cathode-active-material.md"
  official_resource_url: "https://cnfx.com/industry/manufacture-batteries-accumulators/product/lithium-iron-phosphate-cathode-active-material"
  is_verified_logic: true
attributes:
  tap_density:
    status: "config-dependent"
    typical_range: "2.5-3.65 V vs. Li/Li⁺ at 25°C, 0.1-2 C-rate discharge"
    unit: "g/cm³"
  specific_capacity:
    status: "config-dependent"
    typical_range: "Scalable via configuration"
    unit: "mAh/g"
engineering_limits:
  max_safe_operating_point:
    value: 3.8
    unit: "V"
    consequence: "Jahn-Teller distortion in Fe³⁺ at high voltage (&gt;3.8 V) destabilizes olivine structure; lithium diffusion coefficient drops below 10⁻¹⁴ cm²/s at &lt;2.0 V"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Localized temperature &gt;180°C from internal short circuit"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Embed 5 μm Al₂O₃ coating layer to increase thermal stability to 250°C"
  - node_2:
      trigger: "Electrolyte oxidation at &gt;4.2 V vs. Li/Li⁺ forming HF"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dope with 1% Mg²⁺ at Li-site to raise oxidation potential to 4.5 V vs. Li/Li⁺"
bom_nodes:
  active-lifepo4-particles:
    type: "component"
    urn: "URN:CNFX:ME:ACTIVE_LIFEPO4_PARTICLES"
    interface_type: "physical-logic-coupled"
  carbon-coating-layer:
    type: "component"
    urn: "URN:CNFX:ME:CARBON_COATING_LAYER"
    interface_type: "physical-logic-coupled"
  binder-compatibility-agent:
    type: "component"
    urn: "URN:CNFX:ME:BINDER_COMPATIBILITY_AGENT"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "IEC 62660-1:2018 - SECONDARY LITHIUM-ION CELLS FOR THE PROPULSION OF ELECTRIC ROAD VEHICLES - PART 1: PERFORMANCE TESTING"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/manufacture-batteries-accumulators/product/lithium-iron-phosphate-cathode-active-material.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "3424a214b1939a799505393426a2b5faa950cdd4627e0f5162bb2245ba938af3"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Lithium Iron Phosphate Cathode Active Material

## 1. Technical Definition
High-stability cathode powder for lithium-ion batteries.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **2.5-3.65 V vs. Li/Li⁺ at 25°C, 0.1-2 C-rate discharge**. Failure boundary: **Structural collapse at &gt;3.8 V vs. Li/Li⁺ causing iron dissolution, or &lt;2.0 V vs. Li/Li⁺ causing lithium plating**, Mechanism: **Jahn-Teller distortion in Fe³⁺ at high voltage (&gt;3.8 V) destabilizes olivine structure; lithium diffusion coefficient drops below 10⁻¹⁴ cm²/s at &lt;2.0 V**.

### 2.1 Analytical Physics Model
Governed by the **Hansen Solubility Distance (HSP)**:

> **Primary Equation**: $R_a = \sqrt{4\Delta\delta_d^2 + \Delta\delta_p^2 + \Delta\delta_h^2}$  
> **Engineering Impact**: Predicts seal/gasket swelling when exposed to CIP chemicals.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| \delta_d | Dispersive | Engineering Constant |
| \delta_p | Polar | Engineering Constant |
| \delta_h | Hydrogen | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Localized temperature &gt;180°C from internal short circuit | 8 | Exothermic decomposition releasing 0.8 kJ/g, triggering thermal runaway | Embed 5 μm Al₂O₃ coating layer to increase thermal stability to 250°C |
| Electrolyte oxidation at &gt;4.2 V vs. Li/Li⁺ forming HF | 8 | HF etching dissolves FePO₄ lattice, reducing capacity by &gt;20% per cycle | Dope with 1% Mg²⁺ at Li-site to raise oxidation potential to 4.5 V vs. Li/Li⁺ |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| tap_density | Config-dependent | g/cm³ | Verified |
| specific_capacity | Config-dependent | mAh/g | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **High-Temperature Furnace**, **Ball Mill Grinding System**, **Inert Gas Atmosphere System**  
**Downstream Applications**: Electric Vehicle Battery Packs, Energy Storage System Batteries, Portable Power Tool Batteries  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the key advantages of this LiFePO4 cathode material?
**A**: This cathode material offers exceptional thermal stability, long cycle life, and enhanced safety compared to other lithium-ion chemistries. The carbon coating improves conductivity while maintaining structural integrity during charge/discharge cycles.

### Q: How does particle size distribution affect battery performance?
**A**: Controlled particle size (D50) ensures uniform electrode coating, optimal packing density, and consistent electrochemical performance. Smaller particles increase surface area for faster ion transfer, while proper distribution prevents electrode cracking.

### Q: What applications is this cathode material best suited for?
**A**: Ideal for electric vehicle batteries, energy storage systems, power tools, and medical devices where safety, longevity, and thermal stability are critical. The material meets demanding industrial requirements for high-power applications.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- IEC 62660-1:2018 - SECONDARY LITHIUM-ION CELLS FOR THE PROPULSION OF ELECTRIC ROAD VEHICLES - PART 1: PERFORMANCE TESTING

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Lithium Iron Phosphate Cathode Active Material](https://cnfx.com/industry/manufacture-batteries-accumulators/product/lithium-iron-phosphate-cathode-active-material)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: LITHIUM_IRON_PHOSPHATE_CATHODE_ACTIVE_MATERIAL | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c3472a40
