{"id":6419,"date":"2024-05-09T08:51:31","date_gmt":"2024-05-09T06:51:31","guid":{"rendered":"https:\/\/shakti.tattva.se\/?p=6419"},"modified":"2024-05-09T15:57:40","modified_gmt":"2024-05-09T13:57:40","slug":"lg-inr-21700-m50","status":"publish","type":"post","link":"https:\/\/shakti.tattva.se\/index.php\/lg-inr-21700-m50\/","title":{"rendered":"LG INR 21700 M50"},"content":{"rendered":"<header class=\"entry-header\">\n<div class=\"entry-meta\"><\/div>\n<\/header>\n<div class=\"entry-content\">\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\">\n<figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-6420 size-thumbnail\" src=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-01-150x150.webp\" alt=\"\" width=\"150\" height=\"150\" \/><\/figure>\n<div class=\"wp-block-media-text__content\">\n<p>LG INR 21700 M50 has an NMC 811 formulation for the cathode and a Graphite-SiO<sub>x<\/sub>\u00a0anode. It is in the 21700 cylindrical format.<\/p>\n<\/div>\n<\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Key features<\/h4>\n<ul>\n<li>NMC 811\n<ul>\n<li>Li(Ni<sub>0.84<\/sub>Co<sub>0.10<\/sub>Mn<sub>0.06<\/sub>)O<sub>2<\/sub><\/li>\n<li>+1%wt Si<\/li>\n<\/ul>\n<\/li>\n<li>267Wh\/kg<\/li>\n<li>740Wh\/litre<\/li>\n<li>1176W\/kg<\/li>\n<li>3261W\/litre<\/li>\n<\/ul>\n<h4 class=\"wp-block-heading\">Designed to meet<\/h4>\n<ul>\n<li>Safety:<\/li>\n<li>Transport:<\/li>\n<li>Quality:<\/li>\n<\/ul>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<ul>\n<li>Nominal Capacity = 5.0Ah\n<ul>\n<li>Minimum capacity = 4.85Ah<\/li>\n<li>4.921Ah at C\/5 [1]<\/li>\n<\/ul>\n<\/li>\n<li>Nominal Voltage = 3.63V<\/li>\n<li>Nominal Energy = 18.20Wh\n<ul>\n<li>Minimum energy = 17.60Wh<\/li>\n<\/ul>\n<\/li>\n<li>Maximum voltage = 4.20V +\/-0.05V<\/li>\n<li>Cutoff voltage = 2.50V<\/li>\n<li>Maximum continuous discharge\n<ul>\n<li>1.5C at 5\u00b0C to 60\u00b0C<\/li>\n<li>0.3C at -20\u00b0C to 5\u00b0C<\/li>\n<li>0.2C at -30\u00b0C to -20\u00b0C<\/li>\n<\/ul>\n<\/li>\n<li>Maximum pulse discharge 10s = 80W at 80% SoC\n<ul>\n<li>max pulse current =<\/li>\n<\/ul>\n<\/li>\n<li>Maximum charge\n<ul>\n<li>0.7C at 25\u00b0C to 50\u00b0C<\/li>\n<li>0.3C at 0\u00b0C to 25\u00b0C<\/li>\n<\/ul>\n<\/li>\n<li>Operating temperature range = \u00b0C<\/li>\n<li>Storage temperature range \u00b0C<\/li>\n<li>Cycle life<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-2 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Dimensions<\/h4>\n<ul>\n<li>Dia: \u226421.10mm<\/li>\n<li>H: \u226470.15mm<\/li>\n<li>Volume: litres<\/li>\n<li>Mass: 0.068kg +\/-0.001kg<\/li>\n<\/ul>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\">\n<p><figure id=\"attachment_6421\" aria-describedby=\"caption-attachment-6421\" style=\"width: 429px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-6421 size-full\" src=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-02.webp\" alt=\"\" width=\"429\" height=\"510\" srcset=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-02.webp 429w, https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-02-252x300.webp 252w\" sizes=\"auto, (max-width: 429px) 100vw, 429px\" \/><figcaption id=\"caption-attachment-6421\" class=\"wp-caption-text\">The diameter is given based on largest measurement at the top of the cell (Section A)<\/figcaption><\/figure><\/figure>\n<\/div>\n<\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-3 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Test data<\/h4>\n<ul>\n<li>Maximum discharge current =<\/li>\n<li>Short circuit current =<\/li>\n<li>ACIR \u226425m\u03a9 @1 kHz<\/li>\n<li>DCIR = 30+\/-6m\u03a9 30s 0.5C<\/li>\n<\/ul>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Capacity vs Temperature<\/h4>\n<figure class=\"wp-block-table is-style-stripes\">\n<table>\n<tbody>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Discharge Temperature<\/strong> [\u00b0C]<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Energy<\/strong> [Wh]<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">-10<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">12.7<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">0<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">14.6<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">25<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">18.2<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">60<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">17.3<\/td>\n<\/tr>\n<\/tbody>\n<\/table><figcaption class=\"wp-element-caption\">all charging done at 25\u00b0C<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>Reference 1 has many continuous discharge curves for this cell from 0.2A up to 20A continuous.<\/p>\n<h4 class=\"wp-block-heading\">DCIR vs Temperature<\/h4>\n<p>The DCIR was measured by Popp et al [6] at 3 C-rates and at different temperatures. The DCIR values were taken 0.5s into the pulse and have been plotted below versus temperature.<\/p>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6422\" src=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-07.webp\" alt=\"\" width=\"813\" height=\"578\" srcset=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-07.webp 813w, https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-07-300x213.webp 300w, https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-07-768x546.webp 768w\" sizes=\"auto, (max-width: 813px) 100vw, 813px\" \/><\/figure>\n<h4 class=\"wp-block-heading\">Cycle Ageing<\/h4>\n<p>The product data sheet specifies 500 cycles at C\/3 charge and C\/3 discharge between 4.2V and 2.85V, hence 100% to 0%.<\/p>\n<p>The EU collaborative project iModBatt [Reference 5] has tested and cycled a number of cells.<\/p>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6423\" src=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-04.webp\" alt=\"\" width=\"626\" height=\"502\" srcset=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-04.webp 626w, https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-04-300x241.webp 300w\" sizes=\"auto, (max-width: 626px) 100vw, 626px\" \/><\/figure>\n<p>This data shows that the M50 cycle life decrease rapidly when charged above 1C.<\/p>\n<h4 class=\"wp-block-heading\">Physical Properties<\/h4>\n<p>Chang-Hui Chen\u00a0<em>et al<\/em> [7] used this cell to develop the cell teardown, analysis techniques and subsequent mathematical models. The table below comes from this paper and lists some of the physical parameters for the Cathode, Separator and Anode.<\/p>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6424\" src=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-09.webp\" alt=\"\" width=\"887\" height=\"673\" srcset=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-09.webp 887w, https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-09-300x228.webp 300w, https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-09-768x583.webp 768w\" sizes=\"auto, (max-width: 887px) 100vw, 887px\" \/><\/figure>\n<h4 class=\"wp-block-heading\"><a href=\"https:\/\/www.batterydesign.net\/cell-gas-pressure\/\">Internal Gas Pressure<\/a><\/h4>\n<p><strong>Gas Pressure Post Formation<\/strong> \u2013 Gulsoy et al [1] developed a technique to measure the accumulated pressure within the cylindrical cell post formation, the cell in question was the LG INR21700 M50. The method involved opening the cell and inserting a sensor without incurring a loss of pressure. A bespoke test rig was designed to achieve this. Three cells were tested and the average gas pressure was 260 mbar.<\/p>\n<p><strong>Gas Pressure vs SoC<\/strong> \u2013 Gulsoy et al [1] show the gas pressure versus SoC for an LG INR21700 M50 cell and Hemmerling et al [2] show the gas pressure versus SoC for an LG INR18650 MJ1 cell.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6425\" src=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/gas-pressure-LG21700M50-02-1024x536-1.webp\" alt=\"\" width=\"1024\" height=\"536\" srcset=\"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/gas-pressure-LG21700M50-02-1024x536-1.webp 1024w, https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/gas-pressure-LG21700M50-02-1024x536-1-300x157.webp 300w, https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/gas-pressure-LG21700M50-02-1024x536-1-768x402.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<p>Internal gas pressure of instrumented cells with respect to 0% SOC during the processes of (a) charging with C\/3 rate and (b) discharging with 1C rate at different ageing stages<\/p>\n<\/div>\n<\/div>\n<p class=\"has-base-2-background-color has-background\">This post has been built based on the support and sponsorship of:\u00a0<strong><a href=\"https:\/\/www.avantfuturemobility.com\/job-search\/browse\/battery\/jobs\" target=\"_blank\" rel=\"noreferrer noopener\">AVANT Future Mobility<\/a><\/strong>,\u00a0<a href=\"http:\/\/www.quartotechservices.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Quarto Technical Services<\/strong><\/a>,\u00a0<strong><a href=\"https:\/\/power-solutions.tae.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">TAE Power Solutions<\/a><\/strong>,\u00a0<strong><a href=\"https:\/\/helgroup.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">h.e.l group<\/a>\u00a0<\/strong>and\u00a0<strong><a href=\"https:\/\/www.youtube.com\/channel\/UCIFn7ONIJHyC-lMnb7Fm_jw\" target=\"_blank\" rel=\"noreferrer noopener\">The Limiting Factor<\/a><\/strong>.<strong>\u00a0<\/strong><\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-4 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Safety data<\/h4>\n<p>Independent safety tests of the cell.<\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-table is-style-stripes\">\n<table>\n<thead>\n<tr>\n<th>Test<\/th>\n<th>Result<\/th>\n<th>Comments<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>External Short Circuit<\/td>\n<td>No explode, No fire<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Overcharge<\/td>\n<td>No explode, No fire<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Forced Discharge<\/td>\n<td>No explode, No fire<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Crush<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Impact<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Shock<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Vibration<\/td>\n<td>No leakage<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Temperature Cycling<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Low Pressure<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Nail Penetration<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>External Heat<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Drop<\/td>\n<td>No leakage No temperature rising<\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\">Known Applications<\/h3>\n<ul>\n<li><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\">Conclusions<\/h3>\n<p>The LG INR21700 M50 is a high energy and moderate power cell. Based on it\u2019s capability it has been used in a lot of applications and for a lot of research programmes.<\/p>\n<p>Note: if you have tested this cell independently and able to share data please contact us <a href=\"mailto:nigel@batterydesign.net\">nigel@batterydesign.net<\/a><\/p>\n<h4 class=\"wp-block-heading\">References:<\/h4>\n<ol>\n<li><a href=\"https:\/\/lygte-info.dk\/review\/batteries2012\/LG%2021700%20M50%205000mAh%20(Grey)%20UK.html\" target=\"_blank\" rel=\"noreferrer noopener\">LG 21700 M50 5000mAh (Grey)<\/a>, lygte-info.dk<\/li>\n<li><a href=\"https:\/\/www.dnkpower.com\/wp-content\/uploads\/2019\/02\/LG-INR21700-M50-Datasheet.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Lithium Ion INR21700 M50, LG Chem Product Specification Datasheet<\/a>, DNKPower.com<\/li>\n<li>B. Gulsoy, T.A. Vincent, C. Briggs, J.E.H. Sansom, J. Marco, <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0378775323004391\" target=\"_blank\" rel=\"noreferrer noopener\">In-situ measurement of internal gas pressure within cylindrical lithium-ion cells<\/a>, Journal of Power Sources, Volume 570, 2023<\/li>\n<li>Edoardo Catenaro, Simona Onori,<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S2352340921001785?via%3Dihub\" target=\"_blank\" rel=\"noreferrer noopener\"> Experimental data of lithium-ion batteries under galvanostatic discharge tests at different rates and temperatures of operation<\/a>, Data in Brief, Volume 35, 2021<\/li>\n<li><a href=\"https:\/\/cidetec.es\/imodbatt\/en\/wp-content\/uploads\/2019\/11\/A3PS-WS_iModBat.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Benchmark, Ageing and Ante-Mortem of Sota Cylindrical Lithium-Ion Cells<\/a>, iModBatt<\/li>\n<li>Popp, H., Zhang, N., Jahn, M.\u00a0<em>et al.<\/em>\u00a0<a href=\"https:\/\/link.springer.com\/article\/10.1007\/s00502-020-00814-9#Tab3\" target=\"_blank\" rel=\"noreferrer noopener\">Ante-mortem analysis, electrical, thermal, and ageing testing of state-of-the-art cylindrical lithium-ion cells<\/a>.\u00a0<em>Elektrotech. Inftech.<\/em>\u00a0<strong>137<\/strong>, 169\u2013176 (2020)<\/li>\n<li>Chang-Hui Chen,\u00a0Ferran Brosa Planella,\u00a0Kieran O\u2019Regan,\u00a0Dominika Gastol,\u00a0W. Dhammika Widanage\u00a0and\u00a0Emma Kendrick, <a href=\"https:\/\/iopscience.iop.org\/article\/10.1149\/1945-7111\/ab9050\" target=\"_blank\" rel=\"noreferrer noopener\">Development of Experimental Techniques for Parameterization of Multi-scale Lithium-ion Battery Models<\/a>, 2020\u00a0<em>J. Electrochem. Soc.<\/em>\u00a0<strong>167<\/strong>\u00a0080534<\/li>\n<li>Kieran O\u2019Regan, Ferran Brosa Planella, W. Dhammika Widanage, Emma Kendrick, <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0013468622008593\" target=\"_blank\" rel=\"noreferrer noopener\">Thermal-electrochemical parameters of a high energy lithium-ion cylindrical battery<\/a>, Electrochimica Acta, Volume 425, 2022<\/li>\n<\/ol>\n<p>Source: https:\/\/www.batterydesign.net\/lg-21700-m50\/<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>LG INR 21700 M50 has an NMC 811 formulation for the cathode and a Graphite-SiOx\u00a0anode. It is in the 21700 cylindrical format. Key features NMC 811 Li(Ni0.84Co0.10Mn0.06)O2 +1%wt Si 267Wh\/kg 740Wh\/litre 1176W\/kg 3261W\/litre Designed to meet Safety: Transport: Quality: Nominal Capacity = 5.0Ah Minimum capacity = 4.85Ah 4.921Ah at C\/5 [1] Nominal Voltage = 3.63V&#8230;<\/p>\n","protected":false},"author":1,"featured_media":6420,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"wprm-recipe-roundup-name":"","wprm-recipe-roundup-description":"","_kad_post_transparent":"default","_kad_post_title":"default","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6419","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/shakti.tattva.se\/wp-content\/uploads\/2024\/05\/INR21700M50-01.webp","_links":{"self":[{"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/posts\/6419","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/comments?post=6419"}],"version-history":[{"count":3,"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/posts\/6419\/revisions"}],"predecessor-version":[{"id":6456,"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/posts\/6419\/revisions\/6456"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/media\/6420"}],"wp:attachment":[{"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/media?parent=6419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/categories?post=6419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shakti.tattva.se\/index.php\/wp-json\/wp\/v2\/tags?post=6419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}