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Li 4 Ti 5 O 12 Anode: Structural Design from Material to Electrode and the Construction of Energy Storage Devices
Author(s) -
Chen Zhijie,
Li Honsen,
Wu Langyuan,
Lu Xiaoxia,
Zhang Xiaogang
Publication year - 2018
Publication title -
the chemical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.61
H-Index - 78
eISSN - 1528-0691
pISSN - 1527-8999
DOI - 10.1002/tcr.201700042
Subject(s) - materials science , anode , electrode , lithium (medication) , spinel , energy storage , coating , intercalation (chemistry) , rational design , nanotechnology , electrochemistry , optoelectronics , metallurgy , inorganic chemistry , chemistry , medicine , power (physics) , physics , quantum mechanics , endocrinology
Spinel Li 4 Ti 5 O 12 , known as a zero‐strain material, is capable to be a competent anode material for promising applications in state‐of‐art electrochemical energy storage devices (EESDs). Compared with commercial graphite, spinel Li 4 Ti 5 O 12 offers a high operating potential of ∼1.55 V vs Li/Li + , negligible volume expansion during Li + intercalation process and excellent thermal stability, leading to high safety and favorable cyclability. Despite the merits of Li 4 Ti 5 O 12 been presented, there still remains the issue of Li 4 Ti 5 O 12 suffering from poor electronic conductivity, manifesting disadvantageous rate performance. Typically, a material modification process of Li 4 Ti 5 O 12 will be proposed to overcome such an issue. However, the previous reports have made few investigations and achievements to analyze the subsequent processes after a material modification process. In this review, we attempt to put considerable interest in complete device design and assembly process with its material structure design (or modification process), electrode structure design and device construction design. Moreover, we have systematically concluded a series of representative design schemes, which can be divided into three major categories involving: (1) nanostructures design, conductive material coating process and doping process on material level; (2) self‐supporting or flexible electrode structure design on electrode level; (3) rational assembling of lithium ion full cell or lithium ion capacitor on device level. We believe that these rational designs can give an advanced performance for Li 4 Ti 5 O 12 ‐based energy storage device and deliver a deep inspiration.