All-Electrochem-Active Graphite Electrode Enabled by Manipulating Li+ Activity of Inactive Components for High-Energy Batteries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F25%3A10258333" target="_blank" >RIV/61989100:27640/25:10258333 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsaem.5c00794" target="_blank" >https://pubs.acs.org/doi/10.1021/acsaem.5c00794</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsaem.5c00794" target="_blank" >10.1021/acsaem.5c00794</a>
Alternative languages
Result language
angličtina
Original language name
All-Electrochem-Active Graphite Electrode Enabled by Manipulating Li+ Activity of Inactive Components for High-Energy Batteries
Original language description
Graphite anodes have approached their theoretical specific capacity of 372 mA h g–1, which becomes an obstacle for further increasing the energy density of commercial lithium-ion batteries. Various strategies have been proposed to enhance the energy density of graphite-based full batteries, such as decreasing the usage of inactive binders and conductive additives and exploring graphite/SiOx composite anodes. Nevertheless, the anodes cannot balance energy density, power density, and cycling stability. In this study, we designed an all-electrochem-active graphite electrode by manipulating the Li+ activity of the inactive components to improve the energy density of the entire electrode. In our study, colloidal two-dimensional titanium carbide nanosheets (MXene) were employed as binders, and carbon-coated titanium dioxide nanoparticles with oxygen defects (TiO2–x@C) acted as conductive additives in the electrode configurations. Both MXene and TiO2–x@C can function as active materials to store lithium ions by reversible insertion and extraction with little electrochemical degradation. As a result, the all-electrochem-active graphite electrodes demonstrated a superior specific capacity of 394 mA h g–1 at a current density of 0.2C after 300 cycles. This concept of all-electrochem-active electrodes is anticipated to inspire future research on high-energy-density batteries by activating the Li+ affinities of binders and conductive additives.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21000 - Nano-technology
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Energy Materials
ISSN
2574-0962
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
8277-8287
UT code for WoS article
001506459000001
EID of the result in the Scopus database
2-s2.0-105007880815