18650 rechargeable battery lithium 3.7v 3500mah
CH
About Us
Company Profile Development History Sales Network Partner Social Responsibility
Products
Rechargeable Battery Battery Packs Energy Storage Battery Primary Battery Handicraft Article
Subsidiary Company
SINO TECHNOLOGY SUNBEAM GREEN POWER DATAPOWER SEONG-HEE STD
Honor
Qualification Certificate Patent Certificate Honor Certificate
R&D
R&D Center Test Center
News
Company News Industry News
Contact Us
Other information
product
polymer lithium battery Primary battery Rechargeable Battery LR03 alkaline battery
18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

News

Home  >  News  >  Industry News

Company News

Industry News

Self-Discharge Rate of Lithium-Ion Batteries

source:Industry News release time:2025-07-03 Hits:     Popular:AG11 battery

  

  The self-discharge rate is a critical parameter for evaluating the storage performance and shelf life of lithium-ion batteries. Unlike primary batteries, rechargeable lithium-ion batteries inherently lose a small amount of charge over time even when not in use, a phenomenon influenced by chemical and electrochemical reactions within the cell. Understanding and minimizing self-discharge is essential for applications requiring long-term storage, such as backup power systems, electric vehicles in standby mode, or consumer electronics left unused for extended periods.

  Mechanisms of Self-Discharge:

  Electrolyte Permeation: The electrolyte in lithium-ion batteries (typically a lithium salt in organic solvents like ethylene carbonate) can slowly react with the electrode materials. For example, the solid electrolyte interface (SEI) layer on the anode continuously undergoes minor decomposition and reformation, consuming lithium ions and electrons.

  Impurity Reactions: Trace impurities in electrode materials (e.g., transition metal ions from cathode dissolution) or manufacturing defects can catalyze side reactions, leading to spontaneous discharge.

  Thermal Activation: Higher temperatures accelerate kinetic processes, increasing self-discharge rates. A general rule of thumb is that self-discharge doubles for every 10°C increase in temperature within the typical operating range (0–40°C).

  Key Factors Influencing Self-Discharge Rate:

  Cathode Chemistry: Different cathode materials exhibit varying self-discharge behaviors:

  Lithium Cobalt Oxide (LCO): Low self-discharge rate (~2–3% per month), ideal for consumer electronics.

  Lithium Nickel-Manganese-Cobalt Oxide (NMC): Slightly higher rate (~3–5% per month) due to higher nickel content, which increases reactivity.

  Lithium Iron Phosphate (LFP): Very low self-discharge (~1–2% per month), making it suitable for long-duration energy storage.

  State of Charge (SOC): Self-discharge is most pronounced at high SOC (e.g., 100%), where the cathode is highly oxidized, promoting side reactions. Storing batteries at 40–50% SOC minimizes self-discharge and SEI degradation.

  Cycle Age: Older batteries with degraded SEI layers or increased transition metal dissolution show higher self-discharge rates due to more active side reactions.

  Industry standards like IEC 61960 require lithium-ion batteries for portable devices to have a self-discharge rate <5% per month at 25°C. For electric vehicles, manufacturers aim for <10% per month to maintain range during storage.


Read recommendations:

LR20

What are the main functions of 18650 lithium batteries.CR1616 battery

The requirements of the rechargeable battery.9.6kwh energy storage lithium solar battery

602030 battery sales

li ion 18650 battery pack

Last article:Analysis of User Feedback on Polymer Batteries

Next:there is none left

Popular recommendation

16340 battery maker

2023-03-22

Ni-MH battery packs Processing

2023-03-22

48v lithium battery pack

2023-05-09

18650 li-ion battery manufacturer

2023-03-22

portable energy storage battery power supply maker

2023-05-10

Coin Battery CR 1212

2022-09-27

LR14

2022-08-19

521133 160mAh 3.7V

2022-08-19

3.2V 100Ah

2022-10-12

801520 180mAh 3.7V

2022-06-27

Hanging neck fan

2022-09-22

602535 500MAH 3.7V

2023-06-10

551521 130mAh 3.7V

2022-07-01

Coin Battery CR 2430

2022-09-27

18650 2400mAh 3.7V

2022-06-20

Ni-MH batteries

2023-06-25

r6 battery

2023-06-25

18650 battery pack 12v

2023-06-25

402030 lipo battery

2023-06-25

18650 lithium 3.7 battery

2023-06-25

Military low-temperature lithium battery packs are the preferred choice for customized power supplie

2024-06-12

Energy density of ternary lithium batteries

2024-01-17

Measures to Reduce the Self-Discharge Rate of Lithium Batteries

2024-10-26

Selection of Single - Use Lithium Batteries

2025-04-16

20kwh energy storage battery.What are the important reasons for the capacity degradation of lithium

2023-11-10

Is the lifespan of lithium-ion batteries in electric vehicles really longer than lead-acid batteries

2023-09-16

How to control the customized charging and discharging process of 18650 lithium batteries?3.7V 18650

2023-09-08

Precautions for series and parallel connection of lithium batteries

2022-12-12

What is the difference between energy storage battery and power battery

2022-11-09

The advantages and disadvantages of ternary lithium batteries.22kwh energy storage battery manufactu

2023-04-07
360° FACTORY VR TOUR
lithium ion battery 18650 priceWhatsapp
lithium ion battery 18650 price

lithium ion battery 18650 priceTel
+86 19925278095

lithium ion battery 18650 priceEmail
admin@sino-techgroup.com

TOP