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5μm microporous lithium foil

5um微孔锂箔

 

Introduction: The product has a uniform thickness of 5μm. It is an ultra-thin foil continuously attached to the protective film. The lithium foil has tiny holes.

Specification:The common specifications are as follows, and other specifications can be customized

Width 60mm~350mm Tolerance ±0.5mm
Thickness ≥5μm Tolerance ±1μm
 Porosity <5%

 

Product purity:metallic lithium Grade: Li-3 Lithium content ≥99.9%, impurity content refers to the national standard for lithium belt GB/T 20930-2015 (Section 3.2)

 

Scope of application:Nanometerization can alleviate the cycle life defects of the silicon anode caused by crushing and volume changes, but the high specific surface area consumes more lithium to generate SEI, which reduces the first effect of the battery. In response to this problem, we have introduced a microporous lithium foil with a thickness of ≥ 5μm,  which can easily pre-lithiate the silicon anode and increase the first effect to an ideal level.

    
                                                  Micro Structure

Product Advantages:

  • Safe to use---The product is a continuous foil, which can be used in a dry room (dew point≤-40℃)
  • High efficiency---the micropores on the lithium foil facilitate the rapid penetration of the electrolyte, which can be quickly dissolved after being soaked in the electrolyte.
  • Accurate prelithiation---Compared with prelithiation of lithium powder (usually D50 = 40μm), lithium foil occupies less space in the thickness of the negative electrode, and the amount of lithium replenishment is more accurate and uniform.

                                                        
               

           Prelithiation of 5μm  lithium foil                                  Prelithiation of lithium powder

  • Simple operation---completely match the existing battery production process, and the lithium foil can be compounded on the negative electrode surface by rolling, without the need to build a large drying room and configure large equipment.
  •  Mature technology---a full set of technical solutions have been put into use without technical risks.

China Energy Lithium Co., Ltd

Company Tel:86-22-59832337,59832338,59832339
Sales Tel:86-22-59816838,59816832,59816829
FAX:86-22-59816836    E-mail:cel@cellithium.com  
  Company address:  No. 100, the 9th Avenue of Xinye, West TEDA, Tianjin, China.

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