Le vieillissement des batteries (\u00e9galement appel\u00e9 \u00ab d\u00e9gradation des batteries \u00bb) d\u00e9signe la perte progressive des performances et de la capacit\u00e9 d\u2019une batterie au fil du temps, due \u00e0 des processus chimiques, m\u00e9caniques et thermiques qui se produisent lors de son utilisation et de son stockage. Il s'agit d'un facteur cl\u00e9 qui limite la dur\u00e9e de vie, l'efficacit\u00e9 et la s\u00e9curit\u00e9 des batteries utilis\u00e9es dans les v\u00e9hicules \u00e9lectriques (VE), l'\u00e9lectronique grand public et les syst\u00e8mes de stockage d'\u00e9nergie (ESS).
Causes du vieillissement des batteries :
Vieillissement naturel : d\u00e9gradation progressive due \u00e0 des r\u00e9actions chimiques secondaires, m\u00eame lorsque la batterie n'est pas utilis\u00e9e<\/p>\n\n\n\n
Vieillissement par cycles : usure due aux charges et d\u00e9charges r\u00e9p\u00e9t\u00e9es<\/p>\n\n\n\n
R\u00e9actions \u00e9lectrochimiques secondaires : telles que la formation d'une couche d'\u00e9lectrolyte solide (SEI), le d\u00e9p\u00f4t de lithium ou la formation de gaz<\/p>\n\n\n\n
Contraintes m\u00e9caniques : gonflement des \u00e9lectrodes, fissuration ou d\u00e9gradation du s\u00e9parateur<\/p>\n\n\n\n
Effets thermiques : l'exposition \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es ou basses acc\u00e9l\u00e8re la d\u00e9gradation<\/p>\n\n\n\n
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Battery aging (also referred to as battery degradation) describes the gradual loss of performance and capacity in a battery over time due to chemical, mechanical, and thermal processes that occur during its usage and storage. This is a key factor limiting the lifespan, efficiency, and safety of batteries in electric vehicles (EVs), consumer electronics, and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_joinchat":[],"footnotes":""},"class_list":["post-4852","glossary","type-glossary","status-publish","hentry"],"acf":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false},"uagb_author_info":{"display_name":"adadmin","author_link":"https:\/\/www.krlpower.com\/fr\/author\/adadmin\/"},"uagb_comment_info":0,"uagb_excerpt":"Battery aging (also referred to as battery degradation) describes the gradual loss of performance and capacity in a battery over time due to chemical, mechanical, and thermal processes that occur during its usage and storage. This is a key factor limiting the lifespan, efficiency, and safety of batteries in electric vehicles (EVs), consumer electronics, and\u2026","_links":{"self":[{"href":"https:\/\/www.krlpower.com\/fr\/wp-json\/wp\/v2\/glossary\/4852","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.krlpower.com\/fr\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/www.krlpower.com\/fr\/wp-json\/wp\/v2\/types\/glossary"}],"author":[{"embeddable":true,"href":"https:\/\/www.krlpower.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":1,"href":"https:\/\/www.krlpower.com\/fr\/wp-json\/wp\/v2\/glossary\/4852\/revisions"}],"predecessor-version":[{"id":4853,"href":"https:\/\/www.krlpower.com\/fr\/wp-json\/wp\/v2\/glossary\/4852\/revisions\/4853"}],"wp:attachment":[{"href":"https:\/\/www.krlpower.com\/fr\/wp-json\/wp\/v2\/media?parent=4852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}