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Going the distance
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class="top-content"> <div class="page-type"> News </div> <div class="page-title" id="block-pagetitle"> <h1 class="page-title"><span>Going the distance </span> </h1> </div> </div> <div > <div class="status-messages-container"> <div data-drupal-messages-fallback class="hidden"></div> </div> </div> <div class="grid-2col-container"> <div class="container"> <div class="main-content" id="main-content"> <div class="content-section" > <div id="block-ornl-content"> <article class="node node--type-news node--view-mode-full"> <div class="node__content"> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <div class="paragraph paragraph--type--main-image paragraph--view-mode--default"> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <article aria-label="sharma1.jpg"> <div class="content-image content-image--undefined"> <div class="content-image__img"> <img loading="lazy" src="/sites/default/files/styles/main_image_style/public/2024-01/sharma1_1.jpg?h=f7dae89e&itok=TNRigweZ" width="1000" height="650" alt="Caption: Jaswinder Sharma makes battery coin cells with a lightweight current collector made of thin layers of aligned carbon fibers in a polymer with carbon nanotubes. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy" /> <div class="content-image__magnify"> <a href="/sites/default/files/2024-01/sharma1_1.jpg"><span>View a hi-res version of this image</span></a> </div> </div> </div> </article> </div> </div> </div> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <span class="image-caption"> <p>Jaswinder Sharma makes battery coin cells with a lightweight current collector made of thin layers of aligned carbon fibers in a polymer with carbon nanotubes. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy</p> </span> </div> </div> </div> </div> </div> </div> </div> <div class="field-wrapper"> <h2 class="field-label"> Carbon fiber, nanotubes make lighter EV batteries </h2> </div> <div class="news-date" ><time datetime="2024-01-09T12:00:00Z">January 9, 2024</time> </div> <div class="field-container" > <div class="section-topic"> <div class="topic-label">Topics:</div> <ul> <li> <a href="/directorate/estd">Energy Science</a> </li> <li> <a href="/directorate/psd">Materials</a> </li> </ul> </div> </div> <div class="field-wrapper"> <div class="field-container" > <div class="field-elements" > <div class="field-element" > <div class="text-paragraph paragraph paragraph--type--text-body paragraph--view-mode--default"> <div class="text-only-container"> <div class="field-wrapper text-left-indent"> <div class="field-container" > <div class="field-element" ><p>Electric vehicles can drive longer distances if their lithium-ion batteries deliver more energy in a lighter package. A prime weight-loss candidate is the current collector, a component that often adds 10% to the weight of a battery cell without contributing energy.</p><p>Researchers at the Department of Energy’s Oak Ridge National Laboratory <a href="https://www.sciencedirect.com/science/article/pii/S2352152X23035600">developed a lighter, metal-free current collector</a> made of a polymer-based composite with carbon fibers. The aligned fibers work together with a thin film of carbon nanotubes to enhance directional and uniform current flow.</p><p>Lab tests conducted at medium-fast battery charging rates showed the novel current collector performed as well as or better than the standard copper foil. ORNL’s carbon polymer material is less prone to corrosion and can stretch more easily for roll-to-roll manufacturing of electrodes. </p><p>“We are reducing 80% to 90% of the weight of the current collector,” said ORNL’s Jaswinder Sharma. “This will help a lot in increasing the energy density of battery packs.” </p></div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="media-contact-card-field"> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <article class="contact-card node node--type-staff-profile node--view-mode-contact-card"> <div class="contact-card-inner-wrapper"> <div class="contact-card-photo"> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <article aria-label="HEather.PNG"> <div> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <img loading="lazy" src="/sites/default/files/styles/staff_profile_image_style/public/2022-07/HEather.PNG?h=1cf0b2a4&itok=VgGBoq1r" width="260" height="325" alt="Heather Duncan" /> </div> </div> </div> </div> </article> </div> </div> </div> </div> <div class="contact-card-details"> <div class="media-contact-title"> <h3>Media Contact</h3> </div> <div class="contact-title"> <h3>Contact</h3> </div> <div class="contact-card-name"> S Heather Duncan </div> <div class="contact-card-email"> <a href="mailto:duncansh@ornl.gov">duncansh@ornl.gov</a>, </div> <div class="contact-card-phone"> <a class="contact-card-link" href="tel:4787189246">478.718.9246</a> </div> </div> </div> </article> </div> </div> </div> </div> </div> </article> </div> </div> </div> <div class="sidebar-content"> <div class="side-bar-content"> <div id="block-entityviewcontent-2"> <section class="side-bar-wrapper node node--type-news node--view-mode-side-bar-content"> <div class="related-researchers-block" > <h2 class="section-title">Researchers</h2> <div > <div class="sidebar-related-researchers"> <article class="node node--type-staff-profile node--view-mode-related-researcher"> <div class="related-researcher-container" class="node__content"> <div class="related-researcher-photo"> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <article aria-label="Jaswinder Sharma"> <div> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <img loading="lazy" src="/sites/default/files/styles/staff_profile_image_style/public/03009570_Sharma.jpg?h=14b04d8f&itok=aJm2vlv_" width="260" height="325" alt="Jaswinder Sharma" /> </div> </div> </div> </div> </article> </div> </div> </div> </div> <div class="related-researcher-name"> <a href="/staff-profile/jaswinder-sharma">Jaswinder K Sharma</a> </div> </div> </article> <article class="node node--type-staff-profile node--view-mode-related-researcher"> <div class="related-researcher-container" class="node__content"> <div class="related-researcher-photo"> <div class="field-wrapper"> <div class="field-container"> <div class="field-element"> <img src="/themes/custom/ornl/images/no-profile-img.png" width="260" height="260" alt="no-image silhouette"> </div> </div> </div> </div> <div class="related-researcher-name"> <a href="/staff-profile/georgios-polyzos">Georgios Polyzos</a> </div> </div> </article> <article class="node node--type-staff-profile node--view-mode-related-researcher"> <div class="related-researcher-container" class="node__content"> <div class="related-researcher-photo"> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <article aria-label="Nihal_0.jpg"> <div> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" > <img loading="lazy" src="/sites/default/files/styles/staff_profile_image_style/public/2021-07/Nihal_0.jpg?h=973774d5&itok=6jCnW041" width="260" height="325" alt="Nihal Kanbargi" /> </div> </div> </div> </div> </article> </div> </div> </div> </div> <div class="related-researcher-name"> <a href="/staff-profile/nihal-s-kanbargi">Nihal S Kanbargi</a> </div> </div> </article> </div> </div> </div> <div class="related-org-tree sidebar-section"> <h2 class="section-title">Organizations</h2> <div> <div class="term-wrapper"> <div class="root-term parent-term"> <a href="/directorate/estd">Energy Science and Technology Directorate</a> </div> </div> <div class="term-wrapper"> <div class="l1-term parent-term"> <a href="/eeid">Electrification and Energy Infrastructures Division</a> </div> </div> <div class="term-wrapper"> <div class="l2-term parent-term"> <a href="/section/electrification">Electrification Section</a> </div> </div> <div class="term-wrapper"> <div class="l3-term child-term"> <a href="">Energy Storage and Conversion Manufacturing Group</a> </div> </div> <div class="term-wrapper"> <div class="l3-term child-term"> <a href="/group/electronics-and-embedded-systems">Sensors and Electronics Group</a> </div> </div> <div class="term-wrapper"> <div class="l1-term child-term"> <a href="/transportation">Transportation</a> </div> </div> <div class="term-wrapper"> <div class="root-term parent-term"> <a href="/directorate/psd">Physical Sciences Directorate</a> </div> </div> <div class="term-wrapper"> <div class="l1-term parent-term"> <a href="/division/csd">Chemical Sciences Division</a> </div> </div> <div class="term-wrapper"> <div class="l2-term parent-term"> <a href="/section/spc">Separations and Polymer Chemistry Section</a> </div> </div> <div class="term-wrapper"> <div class="l3-term child-term"> <a href="/group/carbon-and-composites">Carbon and Composites Group</a> </div> </div> <div class="term-wrapper"> <div class="root-term parent-term"> <a href="/content/user-facilities">User Facilities</a> </div> </div> <div class="term-wrapper"> <div class="l1-term child-term"> <a href="/facility/cnms">Center for Nanophase Materials Sciences</a> </div> </div> </div> </div> <div class="field-wrapper"> <div class="field-container" > <h2 class="field-label" >Related News</h2> <div class="field-elements" > <div class="field-element" ><div> <a href="/news?f[]=related_news_topics:1166"> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" >Composites</div> </div> </div> </a> </div> </div> <div class="field-element" ><div> <a href="/news?f[]=related_news_topics:1168"> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" >Energy Storage</div> </div> </div> </a> </div> </div> <div class="field-element" ><div> <a href="/news?f[]=related_news_topics:1188"> <div class="field-wrapper"> <div class="field-container" > <div class="field-element" >Transportation</div> </div> </div> </a> </div> </div> </div> </div> </div> </section> </div> </div> </div> </div> </div> <div class="bottom-section-content" > <div id="block-entityviewcontent-3"> 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