{"id":300253,"date":"2017-04-12T07:34:37","date_gmt":"2017-04-12T11:34:37","guid":{"rendered":"http:\/\/spaceweekly.com\/?guid=4739758c328c4c6485b0981991cf9852"},"modified":"2017-04-12T07:34:37","modified_gmt":"2017-04-12T11:34:37","slug":"how-some-battery-materials-expand-without-cracking","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=300253","title":{"rendered":"How some battery materials expand without cracking"},"content":{"rendered":"<p>When you charge a battery, or when you use it, it&#8217;s not just electricity but also matter that moves around inside. Ions, which are atoms or molecules that have an electric charge, travel from one of the battery&#8217;s electrodes to the other, making the electrodes shrink and swell. In fact, it&#8217;s been a longstanding mystery why fairly brittle electrode materials don&#8217;t crack under the strain of these expansion and contraction cycles.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When you charge a battery, or when you use it, it&#8217;s not just electricity but also matter that moves around inside. Ions, which are atoms or molecules that have an electric charge, travel from one of the battery&#8217;s electrodes to the other, making the ele&#8230;<\/p>\n","protected":false},"author":0,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-300253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/300253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=300253"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/300253\/revisions"}],"predecessor-version":[{"id":300254,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/300253\/revisions\/300254"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=300253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=300253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=300253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}