{"id":21888,"date":"2025-11-10T16:27:30","date_gmt":"2025-11-10T15:27:30","guid":{"rendered":"https:\/\/shimadzu-testing.com\/?p=21888"},"modified":"2025-11-12T13:42:57","modified_gmt":"2025-11-12T12:42:57","slug":"peel-test-for-cathode-materials-of-lithium-ion-batteries-in-a-thermostatic-chamber","status":"publish","type":"post","link":"https:\/\/shimadzu-testing.com\/en\/know-how\/special-applications\/peel-test-for-cathode-materials-of-lithium-ion-batteries-in-a-thermostatic-chamber\/","title":{"rendered":"Peel Test for Cathode Materials of Lithium-Ion Batteries in a Thermostatic Chamber"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"21888\" class=\"elementor elementor-21888\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4e15197 e-flex e-con-boxed e-con e-parent\" data-id=\"4e15197\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8f5d236 elementor-widget elementor-widget-spacer\" data-id=\"8f5d236\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a8c5eeb elementor-widget elementor-widget-text-editor\" data-id=\"a8c5eeb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>User Benefits<\/strong><\/p><ul><li>\u00a0A thermostatic chamber makes it possible to measure the adhesion force of cathode materials in actual temperature<br \/>environments.<\/li><li>A copper foil peeling test device enables to conduct peel tests while maintaining a 90\u00b0 angle in a thermostatic chamber.<\/li><li>By using a load cell with a wider accuracy guarantee range than a conventional one, it is possible to conduct high- <br \/>accuracy tests even with small test forces.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-83d7a4f e-con-full e-flex e-con e-child\" data-id=\"83d7a4f\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-511f688 e-con-full e-flex e-con e-child\" data-id=\"511f688\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-586420e elementor-widget elementor-widget-text-editor\" data-id=\"586420e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Introduction<\/strong><br \/>Lithium-ion batteries play an important role in various electronic devices due to their high energy density and excellent charging efficiency. To improve battery performance, materials and processing methods are actively being developed, and strength measurement is one of the essential evaluation methods. This Application News focuses on the adhesion strength of the electrode sheets used as battery electrodes. Fig. 1 shows the structure of an electrode sheet. An electrode sheet consists of an electrode material that adheres to a current collector, through which electrons move. The electrode material is composed of a cathode active material such as lithium iron phosphate and an insulating material known as a binder. When the adhesion between the electrode material and the current collector is weak, the electrode material may delaminate from the current collector, preventing electrons from moving in the electrode sheet and increasing the electrical resistance. Therefore, evaluating the adhesion strength is important for improving battery performance. In this application, test equipment, test conditions, and results of the peel test for battery cathode materials are described. The temperature dependence of the adhesion strength of the electrode materials is also described.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ec5311a e-con-full e-flex e-con e-child\" data-id=\"ec5311a\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3ef86a5 elementor-widget elementor-widget-image\" data-id=\"3ef86a5\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-fig2.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"peel-test-for-cathode-materials-fig2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE4MzcsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL3BlZWwtdGVzdC1mb3ItY2F0aG9kZS1tYXRlcmlhbHMtZmlnMi5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"976\" height=\"880\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-fig2.jpg\" class=\"attachment-full size-full wp-image-21837\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-733892e elementor-widget elementor-widget-image\" data-id=\"733892e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-table1.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"peel-test-for-cathode-materials-table1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE4MzksInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL3BlZWwtdGVzdC1mb3ItY2F0aG9kZS1tYXRlcmlhbHMtdGFibGUxLmpwZyJ9\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"976\" height=\"382\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-table1.jpg\" class=\"attachment-large size-large wp-image-21839\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ffc3244 e-grid e-con-full e-con e-child\" data-id=\"ffc3244\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ea12b73 elementor-widget elementor-widget-image\" data-id=\"ea12b73\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-fig1.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"peel-test-for-cathode-materials-fig1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE4MzYsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL3BlZWwtdGVzdC1mb3ItY2F0aG9kZS1tYXRlcmlhbHMtZmlnMS5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"501\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-fig1-768x501.jpg\" class=\"attachment-medium_large size-medium_large wp-image-21836\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-22e2d6d elementor-widget elementor-widget-image\" data-id=\"22e2d6d\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-fid3.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"peel-test-for-cathode-materials-fid3\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE4MzUsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL3BlZWwtdGVzdC1mb3ItY2F0aG9kZS1tYXRlcmlhbHMtZmlkMy5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"418\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-fid3-768x418.jpg\" class=\"attachment-medium_large size-medium_large wp-image-21835\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bf374d8 e-con-full e-flex e-con e-child\" data-id=\"bf374d8\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-b490814 e-con-full e-flex e-con e-child\" data-id=\"b490814\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b5313c3 elementor-widget elementor-widget-text-editor\" data-id=\"b5313c3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Apparatus<\/strong><br \/>Fig. 2 and Table 1 show the test apparatus, and Fig. 3 shows the specimen structure. The tests were conducted using a Precision Universal Testing Machine AGS -V, with 1 kN screw-type flat grips and a copper foil peeling test device mounted on it. The specimens consisted of rectangular metal plates covered with double-sided tape, which were then coated with cathode active materials. The specimens were set in the copper foil peeling test device and the aluminum foil was gripped by the screw-type flat grip. The foil was always peeled off in a 90\u00b0 direction relative to the specimen, ensuring that the center of the load coincides with the center of AGS-V.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6340d5b e-con-full e-flex e-con e-child\" data-id=\"6340d5b\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-50ceba6 elementor-widget elementor-widget-text-editor\" data-id=\"50ceba6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Test Conditions<\/strong><br \/>Table 2 shows test conditions. In this test, the force and its<br \/>temperature dependence were evaluated. The temperature<br \/>conditions included room temperature, 50 \u00b0C, and 70 \u00b0C.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d97e190 elementor-widget elementor-widget-image\" data-id=\"d97e190\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-table2.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"peel-test-for-cathode-materials-table2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE4NDAsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL3BlZWwtdGVzdC1mb3ItY2F0aG9kZS1tYXRlcmlhbHMtdGFibGUyLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"956\" height=\"426\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-table2.jpg\" class=\"attachment-full size-full wp-image-21840\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3989872 e-con-full e-flex e-con e-child\" data-id=\"3989872\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5e057ff e-con-full e-flex e-con e-child\" data-id=\"5e057ff\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-987a73d elementor-widget elementor-widget-text-editor\" data-id=\"987a73d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Test Results<\/strong><br \/>Fig. 4 shows the force-displacement curve. The dash-dotted curve is at room temperature, dotted curve is at 50 \u00b0C, and real curve is at 70 \u00b0C. The tests were conducted three times at each temperature whereas the shown curve is one representative specimen of the three. The average values of adhesion force are shown in Table 3. Adhesion forces were calculated from the average force between 20 mm and 80 mm of the displacement. These results show that when the temperature gets higher, adhesion force becomes larger.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-95982e2 e-con-full e-flex e-con e-child\" data-id=\"95982e2\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c47c08d elementor-widget elementor-widget-image\" data-id=\"c47c08d\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-fig4.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"peel-test-for-cathode-materials-fig4\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE4MzgsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL3BlZWwtdGVzdC1mb3ItY2F0aG9kZS1tYXRlcmlhbHMtZmlnNC5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"956\" height=\"1408\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-fig4.jpg\" class=\"attachment-full size-full wp-image-21838\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-167ca2b e-flex e-con-boxed e-con e-parent\" data-id=\"167ca2b\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2bb8546 elementor-widget elementor-widget-heading\" data-id=\"2bb8546\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Download<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-951c335 downloads-liste elementor-widget elementor-widget-text-editor\" data-id=\"951c335\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-of-lithium-ion-batteries-in-a-thermostatic-chamber-ags-v.pdf\" target=\"_blank\" rel=\"noopener\">Application: Peel Test for Cathode Materials of Lithium-Ion Batteries in a Thermostatic Chamber<\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f35aff3 elementor-widget elementor-widget-spacer\" data-id=\"f35aff3\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Tensile tests are widely used to evaluate plastic materials, and the results are used as indices for new materials development and<br \/>\nfor implementing quality control.<\/p>\n","protected":false},"author":5,"featured_media":21837,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[366,343],"tags":[],"class_list":["post-21888","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ags-v","category-special-applications"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Peel Test for Cathode Materials of Lithium-Ion Batteries | Shimadzu<\/title>\n<meta name=\"description\" content=\"Perform peel tests on lithium-ion battery cathode materials using Shimadzu testing equipment to evaluate adhesion strength and material reliability.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/shimadzu-testing.com\/en\/know-how\/special-applications\/peel-test-for-cathode-materials-of-lithium-ion-batteries-in-a-thermostatic-chamber\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Peel Test for Cathode Materials of Lithium-Ion Batteries | Shimadzu\" \/>\n<meta name=\"twitter:description\" content=\"Perform peel tests on lithium-ion battery cathode materials using Shimadzu testing equipment to evaluate adhesion strength and material reliability.\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/peel-test-for-cathode-materials-fig2.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Theresa\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" 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