Light assisted plasmonic enhancement of photoelectric performance secondary battery

By using plasma-reinforced lithium-containing semiconductor materials as the positive electrode in lithium-ion batteries and utilizing plasmon resonance energy transfer under illumination, the problem of structural instability of lithium-ion batteries under high voltage is solved, the specific capacity and electrode efficiency of the batteries are improved, and the requirements for high energy density and power output are met.

CN115528246BActive Publication Date: 2026-05-29NANJING UNIV OF SCI & TECH
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Patent Information

Application Number
CN202110711466.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-06-25
Publication Date
2026-05-29
Estimated Expiration
2041-06-25

AI Technical Summary

Technical Problem

Existing lithium-ion batteries are structurally unstable at high voltages, leading to capacity decay and increased electrochemical polarization, making it difficult to meet the demands for high energy density and power output.

Method used

Using plasma-reinforced lithium-containing semiconductor materials or lithium-free semiconductor materials with their own plasma effect as positive electrodes, combined with photo-assisted excitation, the conductivity and charge transfer efficiency of the electrode materials are improved through plasmon-induced resonant energy transfer and photogenerated electron transfer.

Benefits of technology

Under illumination, it significantly improves the specific capacity and electrode efficiency of the secondary battery, increases the electron transport rate, and extends the battery's lifespan.

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Abstract

The application discloses a kind of secondary batteries based on light-assisted plasma enhanced photoelectric performance.It uses plasma complex lithium-containing semiconductor material or lithium-free semiconductor material with plasma effect as positive electrode.The plasma complex lithium-containing semiconductor material is obtained by doping lithium-containing semiconductor material with nano material with plasma effect, and the nano material with plasma effect and semiconductor material have completely overlapping or partially overlapping light response range.Positive electrode captures incident light and generates plasma on the surface of positive electrode to increase the total number of external use electrons and improve the specific capacity of the battery.The secondary battery of the application can effectively reduce the battery interface resistance and increase the electronic conductivity of electrode material under the effect of plasma enhancement, thereby improving the battery capacity.
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