INDUSTRY COMPONENT

Lithium-ion Cells

Lithium-ion cells are rechargeable electrochemical energy storage devices that convert chemical energy into electrical energy through lithium-ion movement between electrodes.

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Component Specifications

Definition
Lithium-ion cells are advanced electrochemical energy storage components consisting of an anode (typically graphite), cathode (lithium metal oxides like NMC, LFP, or LCO), separator (polyolefin membrane), electrolyte (lithium salt in organic solvent), and current collectors. They operate through reversible intercalation/de-intercalation of lithium ions between electrodes during charge/discharge cycles, offering high energy density, low self-discharge, and no memory effect.
Working Principle
During charging, lithium ions de-intercalate from the cathode, travel through the electrolyte and separator, and intercalate into the anode structure. During discharging, the reverse process occurs, with electrons flowing through the external circuit to power devices. The electrochemical potential difference between electrodes creates the cell voltage.
Materials
Anode: Graphite, silicon composites, or lithium titanate; Cathode: Lithium cobalt oxide (LCO), lithium nickel manganese cobalt oxide (NMC), lithium iron phosphate (LFP), or lithium manganese oxide (LMO); Electrolyte: Lithium hexafluorophosphate (LiPF6) in organic carbonate solvents; Separator: Polyethylene/polypropylene microporous membrane; Current collectors: Copper foil (anode), aluminum foil (cathode); Housing: Aluminum or steel casing.
Technical Parameters
  • Cycle Life 500-2000 cycles
  • Charge Rate 0.5C-4C
  • Energy Density 100-265 Wh/kg
  • Nominal Voltage 3.6-3.7V
  • Self-Discharge Rate 2-5% per month
  • Operating Temperature -20°C to 60°C
Standards
ISO 12405-4, IEC 62660, UL 1642, UN 38.3

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Lithium-ion Cells.

lithium ion cell rechargeable battery Li-ion battery energy storage battery technology electrochemical cell Lithium-ion Cells Lithium-ion Cells in Electrical Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Battery Pack

A rechargeable power source that provides electrical energy to portable Bluetooth noise-cancelling headphones.

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Engineering Analysis

Risks & Mitigation
  • Thermal runaway
  • Overcharge/over-discharge damage
  • Internal short circuit
  • Electrolyte leakage
  • Capacity degradation over time
FMEA Triads
Trigger: Internal short circuit due to separator failure
Failure: Thermal runaway leading to fire or explosion
Mitigation: Implement ceramic-coated separators, pressure relief vents, and thermal management systems
Trigger: Lithium plating during fast charging at low temperatures
Failure: Reduced capacity and increased internal resistance
Mitigation: Use battery management systems with temperature-compensated charging algorithms

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Voltage tolerance: ±0.05V per cell; Capacity tolerance: ±3% of rated capacity
Test Method
Performance testing per IEC 62660-1, safety testing per UL 1642, transportation testing per UN 38.3

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 difference between lithium-ion cells and lithium-ion batteries?

Lithium-ion cells are individual electrochemical units, while lithium-ion batteries consist of multiple cells connected in series/parallel configurations with battery management systems (BMS) for voltage regulation and protection.

How should lithium-ion cells be stored for maximum lifespan?

Store at 40-60% state of charge in cool, dry environments (15-25°C) to minimize degradation. Avoid full discharge or prolonged storage at full charge.

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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