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Lithium vs Lead-acid Battery: 4 Major Differences You Should Know

Lithium and Lead-acid batteries are both very popular. They have become deeply integrated into our everyday lives. These vital energy sources power everything from phones to cars. However, what are the key Lithium vs Lead-acid differences behind them? Understanding it allows us to better battery manufacturing and utilization for various needs. This Lithium vs Lead-acid guide explores four major distinctions between these battery types. (Copyright Photo from: https://www.freepik.com/free-photo/master-holds-smartphone-body-new-replacement-screen-tool-kit-repairment-white-table_11344280.htm#fromView=search&page=2&position=4&uuid=a67d3ed1-13bd-4a9e-99b0-337f73cd714c&query=fixing+phone+battery) Lithium and Lead-acid Battery: Chemical Substance Overview The chemical substance is a key distinction when comparing Lithium vs Lead-acid. Lithium-ion batteries use Lithium compounds. It is their primary chemical component. They typically contain Lithium salt electrolytes. They can be configured in various chemistries. Lithium Iron Phosphate (LFP) is a popular type. It is known for its stable performance. Lead-acid batteries use different chemical substances. Their primary active materials include lead dioxide and sponge lead. These batteries have been around for decades. They rely on a sulfuric acid electrolyte. Their design is traditional, but they are a staple in many applications. Differences Between Lithium-ion Battery and Lead-acid Battery Both battery types are leading options. Each has inherent strengths and weaknesses. LFP batteries have become popular in the Li-ion battery category. They embody modern technological advances. So here, taking LFP battery as an example, the following are 4 key differences in Lithium Iron Phosphate vs Lead-acid: Lasting Hours LFP batteries deliver a far longer lifecycle, which boasts about 10 times the cycle life of Lead-acid batteries under most conditions: LFP batteries can last up to 6000 cycles at 80% depth of discharge, while Lead-acid batteries typically last only 500 to 1000 cycles under similar conditions.[1] Some high-quality LFP batteries can even reach up to 10,000 cycles, depending on usage and maintenance.[2] These batteries can deeply discharge before requiring a recharge. Their extended durability is another

NEWS

The Production of E-Bike Batteries: Current Market and Its Next Decade

The global shift toward sustainable transportation has propelled electric bicycles (e-bikes) into the spotlight, transforming urban mobility and recreational cycling alike. At the heart of this revolution lies a critical component: the battery. E-bike batteries, particularly lithium-ion variants, have become the linchpin of an industry projected to exceed $120 billion by 2030, driven by consumer demand for eco-friendly alternatives and governments incentivizing green infrastructure. Yet, as the market surges, questions loom about e-bike battery manufacturing. Will it overcome manufacturing constraints to meet soaring demand? Or will emerging innovations redefine the industry’s trajectory entirely? (Copyright Photo from: https://www.freepik.com/free-photo/sideways-cyclist-standing-e-bike_4982387.htm#fromView=search&page=1&position=5&uuid=b8aedc24-8b2a-46d5-8972-503dc8f45f63&query=e-bike) E-Bike Battery Production: Market Overview The e-bike battery market is experiencing explosive growth, fueled by the global transition to electric mobility and renewable energy solutions. As of 2025, the market is valued at USD 14.44 billion, with projections soaring to USD 26.99 billion by 2030, reflecting a robust compound annual growth rate (CAGR) of 13.33%. This trajectory underscores the critical role of batteries in the e-bike ecosystem, which itself is part of a broader electric vehicle (EV) market expected to surpass $120 billion by the end of the decade. With exponential growth, how does the market present in detail? Major Battery Type In Material: Lithium-ion (Li-ion) batteries remain the undisputed leader in the e-bike sector, commanding over 69% of the market share in 2024. Their dominance stems from superior energy density (150–200 Wh/kg), lightweight design, and extended lifespan (3–5 years or 500–1,000 charge cycles), which align with the needs of modern e-bikes for longer ranges and faster charging. In Shape and Configuration: The 18650 batteries are one of the commonest types in E-bike batteries. It belongs to cylindrical battery with 18mm in diameters and 65mm in length. These cells, popularized by their adoption in consumer electronics and electric vehicles, dominate e-bike battery packs due

NEWS

SZJ Shines at InterBattery 2025

From March 5 to 7, 2025, the highly anticipated InterBattery 2025 took place at COEX Exhibition Center in Seoul, South Korea. As one of the world’s premier events for the battery industry, the exhibition brought together global leaders in battery technology, equipment manufacturing, and industry expertise to spotlight the latest trends and breakthroughs. SZJ, a leading force in China’s lithium battery equipment manufacturing sector, once again took center stage to showcase its cutting-edge innovations and robust capabilities in lithium battery technology. During the event, SZJ’s booth drew significant attention from industry professionals, with its high-speed laser sealing technology for 46-series large cylindrical cells emerging as a standout highlight. This solution is built around three key pillars—high speed, quality control, and full-line integration—demonstrating its industry-leading advantages. In terms of production speed, the technology employs a high-speed continuous flying welding system, achieving a design efficiency of up to 170 PPM and a single-line capacity of 350 PPM, meeting the demands of large-scale manufacturing. On the quality control front, it integrates X-Ray alignment checks and helium leak detection to ensure consistent sealing and excellent gas tightness, with a pass rate exceeding 99.5%. Furthermore, the system excels in full-line management, incorporating raw material inspection and highly automated processes to guarantee stability and efficiency throughout the entire production workflow. Through live demonstrations and in-depth technical explanations, the SZJ team vividly showcased the advancement and application value of this technology. In addition to the cylindrical cell solution, SZJ’s full-line model for aluminum shell battery production also attracted considerable interest. The model comprehensively presents an intelligent manufacturing solution—from material processing and cell fabrication to final assembly and testing—highlighting the company’s strength in automation and intelligent production. Notably, SZJ’s self-developed continuous laser welding technology for top-cap side seams, designed for large prismatic and blade batteries, significantly outperforms traditional segmented

Wokers in Battery Manufacturing Line
NEWS

The Upstream of Industrial Battery Supply: Ready for Battery Pack Material

In industrial battery supply, there is a complete chain to ensure the perfect production of high-quality batteries. Factors from raw material extraction and refinement to the finished battery pack are emphasized. A crucial first phase of this chain is the preparation of battery pack material. It involves thorough pre-processing, synthesis, and modifications to transform raw materials into optimized compounds tailored for optimal battery performance. Industrial Battery Supply Step 1: Materials Selection For battery supply, you need to manufacture batteries. Material selection is the first step to start battery manufacturing. Lithium, cobalt, nickel, manganese, and graphite are top choices that are preferred in industrial battery supply for several reasons. Here’s a table about that:[1][2] Material Where to Find? What Advantages? Lithium Often found in brine deposits or hard rock in its natural lithium inorganic salt-based form Offers high energy density, making batteries lighter and longer-lasting Cobalt Primarily extracted from ore deposits in its natural metallic cobalt form Enhances performance and safety by withstanding high temperatures Nickel Comes from laterite ores in their natural metallic nickel form Contributes to overall energy capacity and longevity Manganese Derives from manganese ore in its natural manganese oxide mineral form Improves safety by stabilizing the cathode Graphite Obtained from graphite mines in its natural graphitic carbon form Serves as an anode thanks to its excellent conductivity and ability to intercalate lithium ions efficiently Industrial Battery Supply Step 2: Raw Material Pre-Processing In the upstream industrial battery supply, crucial pre-processing is required from the raw materials stage all the way to battery integration. Phases may vary depending on the battery pack material. Generally, these include: Chemical Purification: Refining removes impurities through processes like lithium extraction from brine undergoes evaporation and further chemical treatments[3]. Physical Processing: Cobalt and nickel ores undergo grinding to break down into finer particles

Cylindrical Battery
NEWS

Li Po Battery vs Lithium-ion Battery: How to Understand the Difference?

Over the years, we’ve seen incredible improvements in battery technology. Lithium-based batteries have played a big role in this transformation, providing lightweight, high-capacity options that have powered everything from smartphones to electric cars. Among the different types of lithium batteries being compared, the Li Po battery vs lithium-ion battle always comes up. These batteries are now found in a wide range of devices, including smartphones, laptops, drones, and electric vehicles. As we explore this article, we will break down the key differences between Li Po and Lithium-ion batteries, helping you understand which one might be the best fit for your needs. And understand some points as testing the battery manufacturing process. (Copyright Photo from: https://unsplash.com/photos/yellow-plastic-hair-comb-on-black-surface-XWjWtI8B-qol) Key Differences Between Li Po Battery vs Lithium-ion Battery 1.    Composition The basic structure of the Li Po battery vs lithium-ion battery differs in several ways: Li Po batteries have a semi-solid electrolyte, offering more flexibility in design, especially in compact devices Normal lithium-ion batteries contain liquid electrolytes that can be more prone to leakage if damaged The lithium vs polymer battery composition helps explain why Li Po batteries are often chosen for portable electronics, where space and weight matter. Their solid electrolyte provides more structural stability, reducing the risk of leaks and improving performance under certain conditions. 2.    Performance In terms of performance, both Li Po battery vs lithium-ion battery offer impressive energy densities, but there are key differences: Li Po batteries generally have a lower energy density, around 100 to 150 Wh/kg Normal lithium-ion batteries typically offer higher energy density, ranging from 150 to 250 watt-hours per kilogram (Wh/kg) 3.    Safety Both Li Po battery and lithium-ion battery have safety concerns, but their designs manage risks differently: Li Po batteries are generally safer in terms of heat, but they, too, can catch fire

NEWS

SZJ Shines at InterBattery 2025

From March 5 to 7, 2025, the highly anticipated InterBattery 2025 took place at COEX Exhibition Center in Seoul, South Korea. As one of the