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cas.orgOptimizing the use of carbonaceous petroleum byproducts
in rechargeable lithium batteries
As the world seeks to re-engineer its energy sources,
storage systems have experienced a surge in researchand development for, among others, application inelectric vehicles and as an adjunct to renewable
power generation.
Carbon-based electrode materials have been widely
explored in electrochemical energy storage inrechargeable lithium ion batteries–the technology
of choice for electric vehicles1–due to their capacity,energy density, and power density. 2
Carbonaceous materials such as graphite and petroleum
coke are widely used in the anodes of lithium-based
secondary cells. 3 The graphitization process of coke andpitch for electrode materials is well-published,4 but there
are challenges in developing carbon-based electrodematerials with optimum cycle characteristics andstructural performance.

Low tap density, low Coulombic efficiency, andprolonged charge-transfer distance across theelectrode can reduce performance based on practicalpacking densities and thicknesses, limiting the ability toachieve high energy and power densities. 5,6 However,assembly strategies have been developed that realize
synergies between primary carbon nanostructures andadvanced carbon architectures in high-performanceelectrodes. 5
How can CAS SciFinder support your researchin carbon-based electrode materials?
This example shows how you can gain new insight inthis field and stay up-to-date on competitors withCAS SciFinder.

A reference search in CAS SciFinder on the topic "graphite for lithium secondary batteries" returns more than
15,000 research publications, more than half of which were published since 2015. This includes 4,514 patentdocuments since 2015.

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With the advanced functionality of CAS SciFinder, you can easily refine your results using theConcepts filter. These standardized scientific terms provide crucial insight into the core researchin the result set.

Among the most cited documents is Chinese patent 104577084 from Shenzhen BTR
New Energy Materials, China’s leading negative electrode manufacturer. BTR was thefirst to realize the industrialization of layered lithium manganate.7

Information about thevarious Concepts andSubstances identified in
the patent are displayedin the Reference Detail.
This indexing allows you
to explore additional
information that may
be related to yourtopic of interest.

Starting with a substance search in CAS REGISTRY®, the CAS substance collection, you canbegin to focus specifically on the properties of carbon nanomaterials used in electrodes.

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References retrieved from the substance records can be narrowed by Substance Roles, powerful CAS indexing terms
used to find precise information about substances in a publication. CAS SciFinder enables you to focus the searchon carbon nanomaterials from petroleum byproducts applied to electrode materials.
Carbon nanomaterials-based supercapacitors are expected to have a hierarchical porous structure with balanced
distribution of macropores, mesopores, and micropores.8 CAS SciFinder includes concepts related to nanometer
properties, such as porosity.

Now that you have a result set of interest, the Alerts feature in CAS SciFinder can help you keep up-to-date on thelatest research and competitor developments.

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CAS SciFinder powers your multidimensional research withindustry-leading search and analysis technologies and content
that can drive innovation from concept to commercialization.
Backed by an unmatched view of the world’s scientific
literature, you can depend on CAS SciFinder to search fasterand smarter, helping you accelerate research at every stage.

Learn more at cas.org

References
1. Xie, J., Lu, YC. A retrospective on lithium-ion batteries. Nat. Commun. 2020, 11, 2499. 2. Togonon, J., et al. Pure carbon-based electrodes formetal-ion batteries. Carbon Trends 2021, 3, 10035. 3. Loeffler, N., et al. Secondary lithium-ion battery anodes: from first commercial batteries torecent research activities. Johnson Matthey Technol. Rev. 2015, 59 (1), 34-44. 4. Mazumder, B. Chapter Seven – Coal-derived industrial carbons.
In Coal Science and Engineering; Woodhead Publishing India, 2012; pp 344-451. 5. Wang, L., et al. Enhanced roles of carbon architectures inhigh-performance lithium-ion batteries. Nano-Micro. Lett. 2019, 11, 5. 6. Zhang, C., et al. Towards superior volumetric performance: design andpreparation of novel carbon materials for energy storage. Energy Environ. Sci. 2015, 8(5), 1390–1403. 7. Guangming Government Online. Shenzhen
BTW new energy and materials company limited. http://www.szgm.gov.cn/english/business/enterprises/content/post_4571938.html (accessed2021-10-21). 8. Bai X., et al. Hierarchical porous carbon with interconnected ordered pores from biowaste for high-performance supercapacitor
electrodes. Nanoscale Res. Lett. 2020, 15, 88.

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