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A Lithium-ion Battery Using Partially Lithiated Graphite Anode and Amphi-redox LiMn2O4 Cathode.

ABSTRACT: Delithiation followed by lithiation of Li+-occupied (n-type) tetrahedral sites of cubic LiMn2O4 spinel (LMO) at ~4?[Formula: see text] (delivering ~100 mAh gLMO-1) has been used for energy storage by lithium ion batteries (LIBs). In this work, we utilized unoccupied (p-type) octahedral sites of LMO available for lithiation at ~3?[Formula: see text] (delivering additional ~100 mAh gLMO-1) that have never been used for LIBs in full-cell configuration. The whole capacity of amphi-redox LMO, including both oxidizable n-type and reducible p-type redox sites, at ~200 mAh gLMO-1 was realized by using the reactions both at 4 [Formula: see text] and 3?[Formula: see text]. Durable reversibility of the 3 V reaction was achieved by graphene-wrapping LMO nanoparticles (LMO@Gn). Prelithiated graphite (LinC6, n?

SUBMITTER: Jeon Y

PROVIDER: S-EPMC5666002 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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A Lithium-ion Battery Using Partially Lithiated Graphite Anode and Amphi-redox LiMn2O4 Cathode.

Jeon Yuju Y Noh Hyun Kuk HK Song Hyun-Kon HK

Scientific reports 20171101 1

Delithiation followed by lithiation of Li+-occupied (n-type) tetrahedral sites of cubic LiMn2O4 spinel (LMO) at ~4 [Formula: see text] (delivering ~100 mAh gLMO-1) has been used for energy storage by lithium ion batteries (LIBs). In this work, we utilized unoccupied (p-type) octahedral sites of LMO available for lithiation at ~3 [Formula: see text] (delivering additional ~100 mAh gLMO-1) that have never been used for LI ...[more]

PMID: 29093574

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