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May 9, 2026ACS Applied Energy Materials

Bipolar Redox Behavior of Polyaniline Cathodes in Rechargeable Lithium Batteries

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Authors

HZHaitao ZhangHLHanfei LuoRWR Wang

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Overview

This investigation reveals polyaniline's bipolar behavior in lithium battery cathodes, suggesting improved performance and capacity retention.

Key Points

  • The research aims to demonstrate that polyaniline has bipolar characteristics, challenging traditional views of its electrochemical behavior.
  • Investigated polyaniline forms: leucoemeraldine base (LB), emeraldine base (EB), and pernigraniline base (PB).
  • Conducted systematic electrochemical tests in p-type, n-type, and bipolar modes.
  • Characterized structure and evaluated performance over 200 cycles.
  • EB displayed a reversible capacity of 360 mAh g−1 with 97% retention after 200 cycles.
  • Good correlation observed between −NH−/N− proportions and corresponding capacities in different modes.
  • Shift from p-type to n-type behavior during cycling was noted in EB due to electrochemical deprotonation.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/69fecfcdb9154b0b82876beehttps://doi.org/10.1021/acsaem.6c00893
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Revisit of Polyaniline as a High-Capacity Organic Cathode Material for Li-Ion Batteries2024 · 19 citations
  2. 2Proton‐Coupled Chemistry Enabled p–n Conjugated Bipolar Organic Electrode for High‐Performance Aqueous Symmetric Battery2024 · 17 citations
  3. 3Bipolar Organic Cathodes for Stable and Sustainable Na‐Ion and Rechargeable Al Batteries2024
  4. 4Dual-Redox-Center Conjugated Microporous Polymers as Durable p-Type Cathode Enabling Hybrid Kinetics in Lithium Batteries2026
  5. 5Flexible Polyimide Derived Anode Material with Stable and High‐Capacity Performance for Next‐Generation Lithium‐Ion Batteries2026