行业组件数据 · 2026

锂离子电池电芯

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

技术定义与适配语境
典型 锂离子电池电芯 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

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.

组件规格

定义
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.
工作原理
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.
材料
Anode: Graphitesilicon compositesor lithium titanateCathode: 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 solventsSeparator: Polyethylene/polypropylene microporous membraneCurrent collectors: Copper foil (anode)aluminum foil (cathode)Housing: Aluminum or steel casing.
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
标准
ISO 12405-4IEC 62660UL 1642UN 38.3

行业分类与别名

锂离子电池电芯 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Internal short circuit due to separator failure->Thermal runaway leading to fire or explosion->Implement ceramic-coated separators, pressure relief vents, and thermal management systems
Lithium plating during fast charging at low temperatures->Reduced capacity and increased internal resistance->Use battery management systems with temperature-compensated charging algorithms

工业生态与工程逻辑

0
Thermal runaway
1
Overcharge/over-discharge damage
2
Internal short circuit
3
Electrolyte leakage
4
Capacity degradation over time

合规与检测

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

制造该组件的工厂

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制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

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.

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URN:CNFX:ME:UNIT:LITHIUM_ION_CELLS