{"id":4092,"date":"2025-04-18T13:20:39","date_gmt":"2025-04-18T05:20:39","guid":{"rendered":"https:\/\/www.powdergrindingmill.com\/?p=4092"},"modified":"2025-04-18T13:20:43","modified_gmt":"2025-04-18T05:20:43","slug":"what-is-the-negative-electrode-grinding-process","status":"publish","type":"post","link":"https:\/\/www.powdergrindingmill.com\/de\/what-is-the-negative-electrode-grinding-process\/","title":{"rendered":"Was ist der Schleifprozess der negativen Elektrode?"},"content":{"rendered":"<p>Im Herstellungsprozess von Lithiumbatterien <a href=\"https:\/\/www.powdergrindingmill.com\/de\/cases\/\">negative Elektrode<\/a> Materialien, <a href=\"https:\/\/www.powdergrindingmill.com\/de\/dry-grinding\/ball-mill-and-air-classifier-production-system\/\">Schleifen<\/a> is one of the most critical steps. The negative electrode materials are responsible for storing and releasing energy, greatly impacting core indicators like first-cycle efficiency and cycle performance. As the initial step in preparing high-quality negative electrode materials, grinding fundamentally establishes the material\u2019s performance.<br>Im Allgemeinen reduziert das Mahlen die Gr\u00f6\u00dfe fester Partikel mit mechanischer Ausr\u00fcstung. Gro\u00dfe Materialien werden in kleinere St\u00fccke zerbrochen, die weiter zu feineren Pulvern gemahlen werden. Mechanische M\u00fchlen und Luftstrahlm\u00fchlen k\u00f6nnen zum Mahlen von Graphitmaterialien verwendet werden.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"754\" height=\"252\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/grinding-parts.webp\" alt=\"Zerkleinerungsteile\" class=\"wp-image-4093\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/grinding-parts.webp 754w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/grinding-parts-300x100.webp 300w\" sizes=\"(max-width: 754px) 100vw, 754px\" \/><\/figure>\n\n\n\n<p>Carbon materials and their products are composed of particles of different sizes. The size, quantity, physical and chemical properties, shape, and surface condition of graphite particles significantly impact the battery production process and its performance. The following image is a typical particle size distribution chart for graphite. The distribution follows a normal distribution, and the chart shows a \u201cpeak\u201d shape.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"750\" height=\"563\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/Graphite-particle-size-distribution.webp\" alt=\"\" class=\"wp-image-4094\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/Graphite-particle-size-distribution.webp 750w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/Graphite-particle-size-distribution-300x225.webp 300w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">K\u00fcnstliches Graphit<\/h2>\n\n\n\n<p>F\u00fcr <a href=\"https:\/\/www.powdergrindingmill.com\/de\/cases\/\">k\u00fcnstliche Graphitpartikel<\/a>, folgt die ideale Partikelgr\u00f6\u00dfenverteilung einer Normalverteilung.<br>In the particle size chart, the normal distribution appears as a symmetric structure. When the \u201cpeak\u201d structure is narrow, it indicates uniform particle size, with consistent gaps between graphite particles. This improves the contact area between active materials and the electrolyte, thereby enhancing the lithium-ion diffusion coefficient.<br>At the same time, the particle size distribution of graphite particles directly affects the battery slurry process and volumetric energy density. An appropriate particle size can increase solid content, reduce coating difficulty, and allow smaller particles to fill gaps between larger ones. This helps increase the electrode\u2019s compaction density and improves the battery\u2019s volumetric energy density.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"562\" height=\"228\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/Graphite-particle-slurry-coating.webp\" alt=\"Graphitpartikel-Schlamm-Beschichtung\" class=\"wp-image-4095\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/Graphite-particle-slurry-coating.webp 562w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/Graphite-particle-slurry-coating-300x122.webp 300w\" sizes=\"(max-width: 562px) 100vw, 562px\" \/><\/figure>\n\n\n\n<p>Bei der Herstellung von k\u00fcnstlichem Graphit f\u00fcr negative Elektroden ist die Auswahl der geeigneten Zerkleinerungsausr\u00fcstung entscheidend. Wir w\u00e4hlen die richtige Ausr\u00fcstung basierend auf Prozessanforderungen und Materialeigenschaften. F\u00fcr calcinierten Koks verwenden wir typischerweise mechanische Mahlsysteme. Da Asphalt weich und hochviskos ist, kann die Verwendung mechanischer M\u00fchlen leicht zu Blockaden und Sch\u00e4den an der Ausr\u00fcstung f\u00fchren. Daher entscheiden wir uns in der Regel f\u00fcr Luftstrahlm\u00fchlen zum Mahlen von Asphalt.<\/p>\n\n\n\n<p>Im Allgemeinen konzentrieren wir uns bei den Partikelgr\u00f6\u00dfendaten von k\u00fcnstlichem Graphit (D10, D50, D90) am meisten auf den D50-Wert. Die Beziehung zwischen D10, D50 und D90 kann wertvolle Einblicke bieten. W\u00e4hrend Partikelgr\u00f6\u00dfenindikatoren eine Referenz darstellen, sollten sie nicht das einzige Leistungsmerkmal sein. Wir m\u00fcssen auch zus\u00e4tzliche Daten analysieren und bewerten, wie SEM, XRD, elektrochemische Tests und gestapelte Dichte. Dies hilft, Prozessverbesserungen und Optimierungen zu steuern.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"562\" height=\"213\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/Graphite-raw-materials-and-crushed-particles.webp\" alt=\"Graphit-Rohstoffe und zerkleinerte Partikel\" class=\"wp-image-4096\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/Graphite-raw-materials-and-crushed-particles.webp 562w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/Graphite-raw-materials-and-crushed-particles-300x114.webp 300w\" sizes=\"(max-width: 562px) 100vw, 562px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Nat\u00fcrlicher Graphit<\/h2>\n\n\n\n<p>Nat\u00fcrlicher Graphit, als wichtige Quelle f\u00fcr negative Materialien in Lithium-Ionen-Batterien, wird aufgrund seiner reichlichen Reserven, niedrigen Kosten und stabilen Schichtstruktur h\u00e4ufig in Leistungsbatterien und Energiespeichern verwendet. Allerdings beeinflussen die Flake-Struktur, der Verunreinigungsgehalt und die Partikelmorphologie des nat\u00fcrlichen Graphits seine elektrochemische Leistung erheblich. Daher muss sein Zerkleinerungsprozess ein Gleichgewicht zwischen Partikelgr\u00f6\u00dfenkontrolle, Strukturerhaltung und Reinheitssteigerung finden.<\/p>\n\n\n\n<p>Nach dem Bergbau liegt nat\u00fcrlicher Graphit in der Regel in Block- oder grobk\u00f6rniger Form vor, was eine Zerkleinerung erfordert, um mikroskopisch kleine (10-25 \u03bcm) negative Elektrodematerialien zu produzieren.<br>Die Kernziele des Prozesses umfassen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Schichtstruktur delaminieren<\/strong>: Mit mechanischer Kraft die Graphit-Schichten trennen, um mehr aktive Oberfl\u00e4che freizulegen und die Lithium-Ionen-Ein- und Auslagerungseffizienz zu verbessern.<\/li>\n\n\n\n<li><strong>Partikelgr\u00f6\u00dfenverteilung kontrollieren<\/strong>: Optimierung von D50 (mittlere Partikelgr\u00f6\u00dfe) und D90 (obere Grenze der Partikelgr\u00f6\u00dfe bei 90%), um Volumenexpansionsstress w\u00e4hrend Lade- und Entladezyklen zu reduzieren.<\/li>\n\n\n\n<li><strong>Verunreinigungen entfernen<\/strong>: Nat\u00fcrlicher Graphit enth\u00e4lt oft mineralische Verunreinigungen wie Quarz und Ton, die durch Sortieren und Zerkleinerung reduziert werden m\u00fcssen, um den Metallionengehalt zu senken (z.B. Fe &lt; 50 ppm).<\/li>\n\n\n\n<li><strong>Struktureller Schutz<\/strong>: Vermeidung von \u00fcberm\u00e4\u00dfiger Quetschung, die die Kristallstruktur des Graphits besch\u00e4digen k\u00f6nnte, um eine Verringerung der Leitf\u00e4higkeit zu verhindern.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Naturgraphit-Zerquetschungsprozess<\/h3>\n\n\n\n<p><strong>Vorbehandlung und Reinigung<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Grobe Zerkleinerung und Flotation<\/strong>: Das Rohmaterial wird zun\u00e4chst mit einer Jaw Crusher auf 5-10 mm zerdr\u00fcckt, gefolgt von Flotation zur Entfernung von Verunreinigungen wie Quarz und Glimmer, wodurch der Kohlenstoffgehalt auf \u226599% erh\u00f6ht wird.<\/li>\n\n\n\n<li><strong>Hochtemperaturreinigung<\/strong>: Einige hochsulfure Naturgraphit erfordern eine Behandlung bei Temperaturen \u00fcber 2800\u00b0C, um fl\u00fcchtige Verunreinigungen wie Schwefel und Sauerstoff zu entfernen, wodurch die Kohlenstoffreinheit auf \u00fcber 99,95% steigt.<\/li>\n<\/ul>\n\n\n\n<p><strong>Prim\u00e4rzerkleinerung:<\/strong><\/p>\n\n\n\n<p>After pre-treatment, natural graphite enters coarse crushing equipment, such as a jaw crusher or hammer crusher. During the coarse crushing process, strict control of the equipment\u2019s operating parameters is essential. Typically, natural graphite is crushed to a particle size range of 10-50 mm.<\/p>\n\n\n\n<p><strong>Feinmahlung und Klassifizierung<\/strong>\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/ball-mill-3-2.webp\" alt=\"Kugelm\u00fchle-3\" class=\"wp-image-3998\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/ball-mill-3-2.webp 1000w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/ball-mill-3-2-300x300.webp 300w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/ball-mill-3-2-150x150.webp 150w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/ball-mill-3-2-768x768.webp 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p>Wenn eine Kugelm\u00fchle verwendet wird, m\u00fcssen der Typ und das Gr\u00f6\u00dfenverh\u00e4ltnis des Mahlmediums, das Kugel-zu-Material-Verh\u00e4ltnis sowie Parameter wie die M\u00fchlengeschwindigkeit und Mahlzeit genau auf die Eigenschaften des Rohmaterials und die Zielpartikelgr\u00f6\u00dfe abgestimmt werden.<br>Wenn eine <a href=\"https:\/\/www.powdergrindingmill.com\/de\/dry-grinding\/ball-mill-and-air-classifier-production-system\/\">Luftstrahlm\u00fchle<\/a> verwendet wird, ist es wichtig, Parameter wie Luftdruck, Durchflussrate und Zufuhrrate zu kontrollieren, um sicherzustellen, dass Naturgraphit gleichm\u00e4\u00dfig auf die gew\u00fcnschte Partikelgr\u00f6\u00dfe unter dem Einfluss des Luftstroms zerkleinert wird.<br>Nach dem Mahlen werden die Naturgraphitpartikel mit Klassifizierungsausr\u00fcstung sortiert. G\u00e4ngige Klassifizierungsausr\u00fcstung umfasst Zyklonabscheider und Luftklassierer. Diese Ger\u00e4te nutzen die Bewegungscharakteristika der Partikel im Luftstrom, um die Naturgraphitpartikel nach Partikelgr\u00f6\u00dfe in verschiedene Klassen zu sortieren und Produkte zu sammeln, die den Zielpartikelgr\u00f6\u00dfenbereich erf\u00fcllen.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"677\" height=\"711\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/jet-mill-for-lithium-iron-phosphate.jpg\" alt=\"Flie\u00dfbett f\u00fcr Lithiumeisenphosphat\" class=\"wp-image-4097\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/jet-mill-for-lithium-iron-phosphate.jpg 677w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/jet-mill-for-lithium-iron-phosphate-286x300.jpg 286w\" sizes=\"(max-width: 677px) 100vw, 677px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Fazit<\/h2>\n\n\n\n<p>Die Qualit\u00e4t des Zermahlprozesses der Negativ-Elektrode beeinflusst die Batteriekapazit\u00e4t, Lebensdauer und Sicherheit. Ein hochwertiger Prozess sorgt f\u00fcr eine gleichm\u00e4\u00dfige Verteilung der negativen Materialien, die gut mit anderen Komponenten harmonieren. Feinmahlung und strenge Partikelgr\u00f6\u00dfenkontrolle erm\u00f6glichen eine bessere Lithium-Ionen-Speicherung, verbessern die Energiedichte und erh\u00f6hen die Reichweite. Ein vern\u00fcnftiger Prozess reduziert die Kapazit\u00e4tsverschlechterung w\u00e4hrend der Batteriezyklen und verl\u00e4ngert die Lebensdauer. Das Vermeiden von Verunreinigungen und die Sicherstellung einer konstanten Partikelgr\u00f6\u00dfe k\u00f6nnen Sicherheitsrisiken wie Kurzschl\u00fcsse und \u00dcberhitzung verringern.<\/p>\n\n\n\n<p>Zusammenfassend ist der Mahlprozess der Negativ-Elektrode entscheidend bei der Herstellung von Lithiumbatterien.<br>Von der Rohstoffanalyse, der Auswahl der Ausr\u00fcstung bis hin zur Prozesskontrolle und Produktleistung ist jeder Schritt miteinander verbunden. Die kontinuierliche Optimierung dieses Prozesses schafft die Grundlage f\u00fcr leistungsstarke, langlebige und sichere Lithiumbatterien. Dies treibt die Entwicklung der neuen Energiebatteriebranche voran.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"D\u00fcsenm\u00fchle f\u00fcr Bleioxid-Experiment-EPIC\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/0h7l4oqPpE4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Epic-Pulver<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.powdergrindingmill.com\/de\/about\/\">Epic Pulver<\/a>Epic Pulver, \u00fcber 20 Jahre Berufserfahrung in der Ultrafeinpulverindustrie. Aktive F\u00f6rderung der zuk\u00fcnftigen Entwicklung von Ultrafeinpulvern, mit Fokus auf Zerkleinerung, Mahlen, Klassifizierung und Modifikation von Ultrafeinpulvern. Kontaktieren Sie uns f\u00fcr eine kostenlose Beratung und ma\u00dfgeschneiderte L\u00f6sungen! Unser Expertenteam ist bestrebt, hochwertige Produkte und Dienstleistungen anzubieten, um den Wert Ihrer Pulververarbeitung zu maximieren. Epic Pulver \u2013 Ihr vertrauensw\u00fcrdiger Experte f\u00fcr Pulververarbeitung!<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f8-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"8\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/de\/wp-json\/wp\/v2\/posts\/4092#wpcf7-f8-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Nachrichtformular\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/de\/wp-json\/wp\/v2\/posts\/4092#wpcf7-f8-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"8\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f8-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" 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kc_captcha\" data-name=\"kc_captcha\"><span class=\"wpcf7-form-control wpcf7-radio\"><span class=\"captcha-image\" ><span class=\"cf7ic_instructions\">Bitte beweisen Sie, dass Sie ein Mensch sind, indem Sie ausw\u00e4hlen<span> Stern<\/span>\u3002<\/span><label><input aria-label=\"1\" type=\"radio\" name=\"kc_captcha\" value=\"kc_human\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 576 512\"><path fill=\"currentColor\" d=\"M259 18l-65 132-146 22c-26 3-37 36-18 54l106 103-25 146c-5 26 23 46 46 33l131-68 131 68c23 13 51-7 46-33l-25-146 106-103c19-18 8-51-18-54l-146-22-65-132a32 32 0 00-58 0z\"\/><\/svg><\/label><label><input aria-label=\"2\" type=\"radio\" name=\"kc_captcha\" value=\"bot\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path fill=\"currentColor\" d=\"M500 168h-55l-8-21a127 127 0 00-120-83H195a127 127 0 00-120 83l-8 21H12c-8 0-14 8-11 16l8 24a12 12 0 0011 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Herstellungsprozess von Lithium-Ionen-Batterie-Negativelektrodenmaterialien ist das Schleifen einer der kritischsten Schritte. 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