{"id":294184,"date":"2024-01-08T08:25:53","date_gmt":"2024-01-08T07:25:53","guid":{"rendered":"https:\/\/climatescience.press\/?p=294184"},"modified":"2024-01-08T08:25:56","modified_gmt":"2024-01-08T07:25:56","slug":"charging-loss-in-electric-cars-from-9-8-to-38-2-models-differ-greatly","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=294184","title":{"rendered":"Charging loss in electric cars: From 9.8% to 38.2% \u2013 models differ greatly"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u00a0From The Blackout News\u00a0<\/a><\/p>\n\n\n\n

About 80 percent of the electricity needed to charge an electric car is stored in the battery, the rest is lost. How does this happen?<\/p>\n\n\n\n

When a lithium-ion HV battery is discharged, lithium ions move from the cathode to the anode, generating electrical energy. When charging, the opposite happens. Here, current flows against the internal resistance of the battery, generates heat and is lost as a loss.<\/p>\n\n\n\n

However, most losses occur when alternating current (AC) is converted from the grid to direct current (DC) for the high-voltage battery. On-board charging systems take over this task, and their efficiency varies between 75 and 95 percent, depending on the charging current. Losses also occur in the cables and connectors. These losses directly affect charging time and costs. 20 percent loss means 20 percent longer charging time and 20 percent higher costs.<\/p>\n\n\n\n

The following values were determined by Praxis Elektroauto for 20 different models:<\/p>\n\n\n\n

Car Model<\/th>Loss of charge<\/th><\/tr><\/thead>
Kia e-Soul 39 kWh<\/td>9,8 %<\/td><\/tr>
Hyundai Ioniq 5 72 kWh<\/td>11,3 %<\/td><\/tr>
Ford Mustang Mach-e<\/td>11,3 %<\/td><\/tr>
Hyundai Ioniq 6 53 kWh<\/td>12,5 %<\/td><\/tr>
BMW i7 xDrive60<\/td>13,1 %<\/td><\/tr>
VW ID.3<\/td>13,4 %<\/td><\/tr>
Tesla Model Y Long Range<\/td>14,3 %<\/td><\/tr>
Mercedes EQS<\/td>14,7 %<\/td><\/tr>
Opel Mokka-e<\/td>15,2 %<\/td><\/tr>
Fiat 500 Action<\/td>16,0 %<\/td><\/tr>
Dacia Spring<\/td>16,7 %<\/td><\/tr>
BMW i4 eDrive40<\/td>17,2 %<\/td><\/tr>
Mazda MX-30<\/td>18,8 %<\/td><\/tr>
Porsche Taycan<\/td>22,0 %<\/td><\/tr>
Tesla Model 3<\/td>22,6 %<\/td><\/tr>
Mini Cooper SE<\/td>23,1 %<\/td><\/tr>
Polestar 2 78kWh AWD<\/td>27,0 %<\/td><\/tr>
Smart EQ fortwo<\/td>29,2 %<\/td><\/tr>
Renault Zoe Z.E. 50 E-Tech<\/td>31,1 %<\/td><\/tr>
Renault Twingo ZE<\/td>38,2 %<\/td><\/tr><\/tbody><\/table>
Source:\u00a0Practice electric car, as of 30.12.2023<\/a><\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

How to measure losses?<\/h2>\n\n\n\n

The WLTP data provides information. This globally standardized test determines the range and power consumption of electric cars. The traction battery is completely discharged and then charged with alternating current (AC). Since the energy absorbed is measured, the charging losses are included. With these values and the usable battery capacity, the losses can be calculated.<\/p>\n\n\n\n

What are the charging losses in DC charging? With DC fast charging, direct current flows directly into the battery, there is no AC-DC conversion. But higher charging capacities mean more heat loss. The losses in DC charging are between 5 and 10 percent, depending on the charging power and battery system.<\/p>\n\n\n\n

<\/p>\n\n\n\n

How to minimize charging losses?<\/h2>\n\n\n\n

<\/p>\n\n\n\n

When it comes to AC charging, the on-board charger should work efficiently, which is problematic when the current flow is low. Wallboxes and public charging stations achieve better results. The charging power should be about 90 percent of the maximum value of the on-board charger. An 11 kW on-board charger should be set to 14 amps. A short, thick charging cable also helps.<\/p>\n","protected":false},"excerpt":{"rendered":"

About 80 percent of the electricity needed to charge an electric car is stored in the battery, the rest is lost. How does this happen?<\/p>\n","protected":false},"author":121246920,"featured_media":294188,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_crdt_document":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"About 80 percent of the electricity needed to charge an electric car is stored in the battery, the rest is lost. How does this happen?","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[691821977,691825113,691826063,691826064],"class_list":{"0":"post-294184","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-uncategorized","8":"tag-electric-vehicles-evs","9":"tag-higher-costs","10":"tag-lithium-ion-hv-battery","11":"tag-range-and-power","13":"fallback-thumbnail"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/OIG-74.jpeg?fit=1024%2C1024&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-1ewU","jetpack-related-posts":[{"id":284061,"url":"https:\/\/climatescience.press\/?p=284061","url_meta":{"origin":294184,"position":0},"title":"We must put a stop to the electric vehicle revolution \u2013 before someone gets\u00a0hurt","author":"uwe.roland.gross","date":"19\/10\/2023","format":false,"excerpt":"Electric car batteries are catching fire and that is a big turnoff to buyers because the batteries of EVs can be a major safety hazard. 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