What is the negative electrode material of ternary lithium batteries?
2 Answers
Ternary lithium batteries generally use graphite for the negative electrode. Graphite has a layered structure, which can accommodate lithium atoms. The positive electrode of ternary lithium batteries is made of ternary materials. Some ternary lithium batteries use nickel, cobalt, and manganese for the positive electrode. The following are related introductions about ternary lithium batteries: 1. Ternary lithium batteries have relatively high energy density, and their low-temperature performance is also relatively good. However, the safety of these batteries is not very good. Ternary lithium batteries start to burn at 200 degrees Celsius, which is why we sometimes see pure electric vehicles catching fire or exploding. 2. There is a separator in lithium batteries that allows lithium ions to pass through but not electrons. Therefore, electrons can only travel through the external circuit. When electrons pass through the external circuit, current is generated in the internal and external circuits.
When it comes to ternary lithium batteries, I've done quite a bit of research on EV batteries. The anode material is typically carbon-based, like graphite. Graphite plays a crucial role in the battery—during charging, lithium ions intercalate into it, and during discharging, energy is released, maintaining stable chemical reactions. The cathode of a ternary lithium battery consists of a nickel-cobalt-manganese combination, and when paired with a graphite anode, it forms the complete structure, influencing range and charging speed. Graphite is stable and low-cost, making it the current mainstream choice, but its capacity is limited. In the future, it may be upgraded to silicon composite materials in high-end models. As an EV owner, understanding anode materials helps assess battery performance—for instance, frequent fast charging may accelerate graphite aging and reduce overall lifespan. It's advisable to refer to the vehicle manual or consult professional service centers to adjust charging strategies based on driving habits, enhancing both safety and cost-efficiency.
