On April 27, 2026, at Desay Battery’s global launch event themed “Expanding Sodium Frontiers, Empowering Solid-Liquid Innovation” in Changsha, China, the company unveiled a new hybrid solid-state battery with an energy density reaching 420Wh/kg. That number immediately attracted industry attention. Why? Because: Conventional liquid lithium batteries today typically range around 200–300Wh/kg 420Wh/kg places this product…
Category Archives: Unclassified
Unclassified
🔋 Energy Density, Power Density, and Coulombic Efficiency: The Invisible Triangle Defining Battery Performance
18
May
May
When people talk about batteries, the conversation usually revolves around one question: “How much energy can it store?” But in reality, battery performance is governed by a much more complex relationship involving three core parameters: ⚡ Energy Density 🚀 Power Density 🔄 Coulombic Efficiency (CE) These three metrics form an invisible triangle that determines whether…
14
May
May
The opening day of CIBF 2026 (China International Battery Fair) sent one unmistakable message to the global battery industry: 👉 The battery market is no longer discussing whether next-generation batteries will arrive. 👉 The industry is now competing on who can commercialize them first. As one of the world’s largest battery exhibitions, CIBF 2026 gathered…
Unclassified
Supercapacitors: The “Power Sprinters” of Energy Storage — And Why They May Reshape the Future of Drone Power Systems
13
May
May
In the world of energy storage, most discussions revolve around lithium batteries: higher energy density, faster charging, longer cycle life. But there is another technology quietly evolving in parallel — one that does not aim to replace batteries, but instead solves problems batteries struggle with naturally. That technology is the supercapacitor. Positioned between conventional capacitors…
Unclassified
⚡ Why 80% Capacity Retention Marks the End of a Lithium Battery’s Life: Insights for Drone Operators
11
May
May
As drone technology advances, battery performance has become the critical factor determining flight time, reliability, and operational safety. One question often arises among UAV operators: Why is 80% capacity retention widely regarded as the end-of-life (EOL) threshold for lithium batteries? Let’s break it down—combining consumer expectations, electrochemical behavior, and historical standards—and see how this applies…
Unclassified
⚡ Lithium Battery Internal Resistance: The Hidden Factor Affecting Drone, EV, and Consumer Device Performance
08
May
May
Every day, we rely on lithium batteries—whether in smartphones, laptops, electric vehicles, power banks, drones or home energy storage systems. Yet, few people pay attention to a “hidden killer” inside these batteries: internal resistance (IR). It’s invisible and untouchable, yet it directly determines a battery’s health, efficiency, and safety. For example, when your phone drains…
06
May
May
Drone flight has become incredibly advanced. Stabilization, autonomy, and navigation systems have reached a point where flying is no longer the biggest challenge. But at sea, landing is still a gamble. Unpredictable waves, constantly shifting decks, and slippery surfaces make even the most experienced pilots struggle. As a result, most offshore drone operations are still…
Unclassified
🔋 From Battery to Lift: How Energy Becomes Flight in Multirotor Drones (and How to Size the Right Battery)
06
May
May
In multirotor drones, flight is not just about motors or propellers—it’s about a tightly coupled energy chain where every component affects the next. Understanding how electrical energy is converted into thrust is the foundation of selecting the right battery, optimizing performance, and avoiding costly mismatches. Let’s break down the complete powertrain, then walk through hover…
Unclassified
🚀 Laser Power Beaming for Drones: Breakthrough, Reality Check, and What It Means for the Battery Industry
29
Apr
Apr
1. Industry News: A Step Toward “Infinite Flight” Recently, Kraus Hamdani Aerospace (KHA) and PowerLight Technologies successfully demonstrated a laser-based wireless power transmission system for drones at Shaw Air Force Base. During the test: The K1000ULE UAV received ~1 kW of power mid-air The system operated at altitudes up to 5,000 ft (1,500 m) The…
28
Apr
Apr
As UAVs and eVTOLs advance, battery performance remains the limiting factor for flight endurance, payload, and operational efficiency. While flight control, aerodynamics, and lightweight materials have seen major improvements, energy density is still the bottleneck. One of the most effective ways to increase energy density is raising the operating voltage of lithium-ion soft pack batteries….