{"id":8394,"date":"2025-09-22T14:40:08","date_gmt":"2025-09-22T06:40:08","guid":{"rendered":"https:\/\/www.qiwangny.com\/?p=8394"},"modified":"2025-09-22T14:40:08","modified_gmt":"2025-09-22T06:40:08","slug":"what-are-the-main-structures-of-lithium-batteries","status":"publish","type":"post","link":"https:\/\/www.qiwangny.com\/?p=8394&lang=en","title":{"rendered":"What are the main structures of lithium batteries?"},"content":{"rendered":"<p>I. Core Structure<\/p>\n<p>1. Cell<\/p>\n<p>Type: Primarily lithium iron phosphate (LFP) cells, they are suitable for high-frequency charging and discharging in forklifts due to their high thermal stability, long cycle life (approximately 3,000-5,000 cycles), and safety.<\/p>\n<p>Arrangement: Multiple cells are connected in series or parallel to form modules (e.g., 20-100 strings). The total voltage is typically 24V, 48V, 72V, or 80V, and the capacity can reach 200-1000Ah.<\/p>\n<p>Casing: Individual cells are encapsulated in a steel or aluminum-plastic package, with some modules featuring additional metal casings for enhanced protection.<\/p>\n<p>2. Battery Management System (BMS)<\/p>\n<p>Core Functions:<\/p>\n<p>Real-time Monitoring: Monitors voltage, temperature, and current to prevent overcharging, over-discharging, and overcurrent.<\/p>\n<p>Battery Balancing: Automatically balances cell voltages to prevent performance degradation due to cell variations.<\/p>\n<p>Fault Diagnosis: Detects abnormalities (such as short circuits and overtemperature) and shuts down the circuit. Redundant Design: Dual BMS systems or independent fuses enhance reliability.<br \/>\n3. Structural Components<br \/>\nModule Frame: High-strength aluminum alloy or engineering plastic secures the battery cells and distributes pressure.<br \/>\nConnection: Laser welding or copper busbar flexible connections reduce internal resistance and provide vibration resistance.<br \/>\nMounting Bracket: Integrated with the forklift frame, featuring vibration-resistant features (e.g., rubber pads, snap-on fasteners).<br \/>\n4. Thermal Management System<br \/>\nCooling Methods:<br \/>\nAir Cooling: Built-in fan, suitable for low- and medium-power forklifts.<br \/>\nLiquid Cooling: Water-cooled plate + circulation piping, suitable for high-power or intensive operating conditions (e.g., cold chain warehouses).<br \/>\nTemperature Uniformity: Thermally conductive silicone and heat sinks ensure a cell temperature difference of \u22645\u00b0C.<br \/>\nII. Protection and Safety Structure<br \/>\n1. High-Voltage Connector<br \/>\nAnti-touch design (IP67\/IP68 waterproof and dustproof), with a locking mechanism to prevent accidental disconnection. Built-in fuses and high-voltage interlock (HVIL) automatically alarm in the event of a wire break.<\/p>\n<p>2. Insulation and Explosion-Proof<\/p>\n<p>Insulation: Flame-retardant epoxy resin or ceramic coating is used between the battery cells to provide high-temperature resistance (&gt;150\u00b0C).<\/p>\n<p>Pressure Relief Valve: An explosion-proof valve is designed on the top of the module to release pressure in the event of an abnormality, preventing explosion.<\/p>\n<p>3. Protection Rating<\/p>\n<p>The housing meets IP67 (dust and water resistance) or IP69K (high-pressure, high-temperature washdown), suitable for forklift hydraulic fluids and humid environments.<\/p>\n<p>III. Forklift-Specific Design Features<\/p>\n<p>1. Modular Design<\/p>\n<p>Modules can be quickly replaced and hot-swapped, minimizing downtime.<\/p>\n<p>Standardized interfaces (such as CAN bus communication) ensure compatibility with different forklift brands.<\/p>\n<p>2. High-Rate Discharge<\/p>\n<p>Supports 2C to 5C continuous discharge (e.g., a 200Ah battery can discharge at 500A), meeting the instantaneous high torque requirements of forklifts. 3. Shock-Resistant Structure<br \/>\nFlexible spaces are reserved between battery cells, and polyurethane shock-absorbing pads are used to withstand the bumpy conditions of forklift trucks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I. Core Structure 1. Cell Type: Primarily lithium iron  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8031,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[444],"tags":[],"class_list":["post-8394","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oop8"],"_links":{"self":[{"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=\/wp\/v2\/posts\/8394","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8394"}],"version-history":[{"count":1,"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=\/wp\/v2\/posts\/8394\/revisions"}],"predecessor-version":[{"id":8395,"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=\/wp\/v2\/posts\/8394\/revisions\/8395"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=\/wp\/v2\/media\/8031"}],"wp:attachment":[{"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.qiwangny.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}