INDUSTRY COMPONENT

Anode

Anode is the negative electrode in rechargeable batteries where oxidation occurs during discharge, enabling electron flow and energy storage.

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Component Specifications

Definition
In rechargeable batteries, the anode is the electrode where oxidation (loss of electrons) occurs during the discharge cycle. It serves as the source of electrons that flow through the external circuit to the cathode, generating electrical energy. During charging, the process reverses, with lithium ions (in lithium-ion batteries) or other charge carriers intercalating into the anode material for energy storage. Anodes are critical for determining battery capacity, cycle life, and safety characteristics.
Working Principle
The anode operates on electrochemical principles: during discharge, active materials (e.g., graphite in Li-ion batteries) undergo oxidation, releasing electrons to the external circuit and ions to the electrolyte. During charging, an external voltage forces electrons and ions back into the anode, storing energy through reduction reactions. This reversible redox process enables repeated charge-discharge cycles.
Materials
Common materials include graphite (natural or synthetic), silicon, lithium titanate (LTO), or lithium metal for advanced batteries. Copper foil typically serves as the current collector. Binders (e.g., PVDF) and conductive additives (e.g., carbon black) are mixed with active materials to form the anode coating.
Technical Parameters
  • Capacity 300-500 mAh/g (graphite)
  • Thickness 50-200 μm
  • Cycle Life 500-2000 cycles
  • Voltage Range 0.01-1.5 V vs. Li/Li+
  • Energy Density 150-400 Wh/kg
  • Coulombic Efficiency >99.5%
Standards
ISO 12405-4, IEC 62660-1, UL 1642, GB/T 18287

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Anode.

battery anode rechargeable battery component lithium-ion anode graphite anode anode materials electrochemical oxidation battery electrode energy storage Anode Anode in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Rechargeable Battery

An electrical energy storage device that can be recharged and discharged multiple times, used to store solar energy in outdoor solar bollards.

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Power Supply (Battery)

A battery-based power source that provides electrical energy to operate a transmitter/sonde.

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Battery

An electrochemical device that stores and supplies electrical energy to power smartphones.

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Engineering Analysis

Risks & Mitigation
  • Lithium plating causing short circuits
  • SEI layer growth reducing efficiency
  • Thermal runaway from overheating
  • Mechanical deformation leading to internal shorts
FMEA Triads
Trigger: Overcharging or low-temperature charging
Failure: Lithium plating on anode surface
Mitigation: Implement voltage/temperature monitoring, use charging algorithms with temperature compensation
Trigger: Electrolyte decomposition
Failure: Excessive SEI layer formation reducing active material
Mitigation: Optimize electrolyte composition, control operating voltage window
Trigger: Mechanical stress from volume expansion
Failure: Electrode cracking and loss of electrical contact
Mitigation: Use flexible binders, design with expansion buffers, apply proper calendering

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±2% capacity variation, ±5 μm thickness tolerance, <0.1% impurity content
Test Method
Cyclic voltammetry, electrochemical impedance spectroscopy, galvanostatic charge-discharge testing per IEC 62660 standards

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the main function of an anode in a rechargeable battery?

The anode stores and releases energy by undergoing reversible oxidation during discharge and reduction during charging, facilitating electron flow in the circuit.

Why is graphite commonly used in lithium-ion battery anodes?

Graphite provides stable intercalation of lithium ions, good conductivity, low cost, and long cycle life, making it ideal for commercial batteries.

How does anode degradation affect battery performance?

Degradation (e.g., SEI layer growth, lithium plating) reduces capacity, increases internal resistance, and can lead to safety hazards like thermal runaway.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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