Method for pre-lithiation of negative electrode for all-solid-state secondary battery and secondary battery using same
A secondary battery and all-solid-state technology, applied in the direction of secondary batteries, battery electrodes, non-aqueous electrolyte battery electrodes, etc., can solve the problems of not disclosing the pre-lithiation process in detail
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example 1
[0098] By using figure 1 The method shown in contact with the foil-shaped lithium metal is shown to perform pre-lithiative, in which the electrode active material, the conductive agent, and the solid electrolyte particles in the powder mixture are mixed at a weight ratio of 85: 2: 13. At this time, pre-lithiuming was performed at 25 ° C, and the contact time was 1 weeks. After pre-lithiating, the average content of lithium ions in the SEI layer of the powder mixture was measured by ICP spectroscopy.
example 2
[0100] In addition to the contact time of the foil-shaped lithium metal to 2 weeks, pre-lithium ions are performed using the same method as Example 1, and the average content of lithium ions in the SEI layer of the powder mixture is measured by ICP spectroscopy. .
example 3
[0102] In addition to the contact time of the foil-shaped lithium metal becomes 3 weeks, pre-lithium is performed using the same method as Example 1, and the average content of lithium ions in the SEI layer of the powder mixture is measured by ICP spectral analysis. .
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