{"id":239101,"date":"2023-04-21T20:17:40","date_gmt":"2023-04-21T14:47:40","guid":{"rendered":"https:\/\/blog.forumias.com\/?p=239101"},"modified":"2023-04-24T16:32:04","modified_gmt":"2023-04-24T11:02:04","slug":"a-breakthrough-in-ev-battery-tech","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/a-breakthrough-in-ev-battery-tech\/","title":{"rendered":"A breakthrough in EV battery tech"},"content":{"rendered":"\n

Source<\/strong>: The post is based on the article\u00a0\u201cA breakthrough in EV battery tech<\/strong>\u201d published in Business Standard <\/strong>on\u00a021st<\/sup> April 2023<\/strong>.<\/p>\n

Syllabus: GS 3 \u2013 Science and Technology<\/strong><\/p>\n

Relevance: <\/strong>About Sodium-ion batteries<\/strong><\/p>\n

News<\/strong>: The demand for Electric Vehicle (EV) is on rise. As per the Economic Survey 2022-23<\/strong>, EV market is projected to grow at a compound annual growth rate of 49 percent between 2022 and 2030, and annual sales are expected to reach 10 million by that time.<\/p>\n

This will add pressure on the battery supply chain. Hence, there is a need to diversify the battery market from lithium-ion batteries to more cost-effective batteries like sodium-ion batteries.<\/p>\n

How are sodium-ion batteries better than lithium-ion batteries?<\/strong><\/h2>\n

The cheapest lithium-ion battery is LFP (lithium-iron-phosphate).<\/strong> However, the rapid growth in the worldwide EV battery demand has caused problems with lithium mining and the prices have also increased.<\/p>\n

In such a case, sodium-ion batteries are the alternative. Large quantities of sodium can be extracted from both the earth\u2019s crust and seawater <\/strong>and at a lower cost than lithium.<\/p>\n

Moreover, an aluminium current collector can be used at both electrodes<\/strong>, unlike the lithium-ion battery, which requires a more expensive copper current collector at the anode.<\/p>\n

Overall, a sodium-ion battery is 20-30 percent cheaper than an LFP battery.<\/strong>\u00a0Further, the Sodium-ion battery has no over-discharge characteristics,<\/strong> which means it can be allowed to discharge to zero volts.<\/p>\n

This reduces the chances of fire hazards during transportation, unlike lithium batteries which must always be stored with a minimum charge.<\/p>\n

Sodium-ion batteries have faster charging times and could have a longer lifespan<\/strong> compared to lithium-ion variants.<\/p>\n

What progress has been made for sodium-ion batteries and what are the associated challenges?<\/strong><\/h2>\n

There are many companies working on sodium-ion technology.<\/p>\n

For example,<\/strong> the world\u2019s largest EV battery manufacturer unveiled its first-generation sodium batteries in mid-2021 and announced a commercial launch in 2023.<\/p>\n

However, a major challenge in scaling up production is<\/strong> the development of suitable materials and supply chain for both electrodes and the electrolyte.<\/p>\n

Another concern<\/strong> is that it is often argued that sodium-ion batteries are heavier than the lithium-ion variants for the same energy delivered due to higher density.<\/p>\n

However, the first generation of sodium-ion batteries has reached energy densities up to 160 Wh\/kg while the most recent LFP batteries have achieved just over 180 Wh\/kg.<\/p>\n

How are sodium-ion batteries relevant for India?<\/strong><\/h2>\n

A large part of the Indian market in the next decade will comprise smaller sub-10kWh batteries that go into two- and three-wheelers.<\/strong> Due to which, manufacturers have switched to LFP batteries given its low costs.<\/p>\n

However, these batteries have higher densities making them heavier.<\/p>\n

They can be replaced by sodium-ion batteries as sodium-ion batteries offer a cost-effective option for applications where weight and energy density are less of an issue.<\/strong><\/p>\n

What can be the way ahead?<\/strong><\/h2>\n

Sodium-ion batteries present a promising opportunity in developing India\u2019s home-grown battery technology, thereby reducing the dependency on oil imports.<\/p>\n

Moreover, the need for accelerated growth of EVs at a lower cost offers the opportunity for India to become a global leader in manufacturing sodium-ion batteries.\u00a0<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Source: The post is based on the article\u00a0\u201cA breakthrough in EV battery tech\u201d published in Business Standard on\u00a021st April 2023. Syllabus: GS 3 \u2013 Science and Technology Relevance: About Sodium-ion batteries News: The demand for Electric Vehicle (EV) is on rise. As per the Economic Survey 2022-23, EV market is projected to grow at a… Continue reading A breakthrough in EV battery tech<\/span><\/a><\/p>\n","protected":false},"author":10320,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1230,9],"tags":[10503,8906,216,11478],"class_list":["post-239101","post","type-post","status-publish","format-standard","hentry","category-9-pm-daily-articles","category-public","tag-business-standard","tag-electric-vehicle","tag-gs-paper-3","tag-sodium-ion-batteries","entry"],"jetpack_featured_media_url":"","views":{"total":0,"cached_at":"","cached_date":1700987343},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/239101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10320"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=239101"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/239101\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=239101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=239101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=239101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}