How to Efficiently Recycle Lithium Batteries

With the growing prevalence of new energy vehicles, their power batteries are now reaching the end of their service life in large numbers. How can these lithium-ion batteries be effectively recycled and utilized? This article explores this topic from two key perspectives: first, identifying exactly which components within the batteries hold commercial value; and second, examining the core equipment required to efficiently dismantle them.

The Valuable Structural Components Inside a Lithium Battery

A lithium-ion battery primarily consists of five components: the cathode, anode, electrolyte, separator, and casing. The value contribution of these various components differs significantly:

Cathode Materials

The cathode is the most valuable component of a lithium-ion battery, accounting for more than half (51%) of the battery’s total cost. It primarily consists of active materials (making up approximately 90%), conductive agents, and binders.

🔋Ternary Cathodes: Rich in nickel, cobalt, manganese, and lithium. Recycling one ton of retired batteries yields approximately 150 kg of nickel, 20 kg of cobalt, and 80 kg of lithium—equivalent to saving 200 tons of raw ore mining.

🔋Lithium Iron Phosphate (LFP) Cathodes: Although free of cobalt and nickel, they contain approximately 1.1% lithium; furthermore, the iron and phosphorus components also possess recycling value.

Anode Materials

The anode primarily consists of active materials—such as graphite and lithium titanate, which account for approximately 90% of the composition—combined with conductive agents and binders; these components are supported by a copper foil substrate.

Although the unit price of graphite does not rival that of precious metals, it possesses a distinct advantage in terms of sheer volume—when the graphite accumulated within a ton of batteries is aggregated, its actual recycling value proves to be quite substantial.

Current Collector

🔋The “skeletons” of the positive and negative electrodes—known as current collectors—consist of aluminum foil and copper foil, respectively.

♻️Following disassembly and sorting, the purity of the recovered copper can reach over 99%, while that of the aluminum can exceed 98%.

These high-purity metals can be sold directly as recycled raw materials, commanding a significantly higher value than unsorted scrap mixtures.

Electrolyte and Separator

🔋The electrolyte contains lithium salts (such as lithium hexafluorophosphate).

🔋The separator is typically made of plastic (PP or PE).

Although these materials hold little intrinsic monetary value, improper disposal can lead to environmental pollution; therefore, their recovery must be conducted in accordance with established regulations.

Summary: The core value hierarchy in lithium-ion battery recycling is as follows: Cathode Precious Metals (Nickel, Cobalt, Lithium) > Copper and Aluminum Current Collectors > Graphite > Electrolyte Lithium Salts.

Core Equipment for High-Efficiency Recovery

To maximize the conversion of the aforementioned value, reliance on advanced equipment support is essential. The following are several key categories of equipment currently considered mainstream:

The lithium battery recycling plant consists of multiple machines working together, the following is a description of some of the core equipment:

Shredder: Shredded lithium batteries into smaller pieces.

Hammer crusher: For the secondary crushing of shredded materials.

Grinder: For the grinding of the crushed materials.

Separation Machine: Separate the materials after being ground.

Collector: Collect and release the dust .

Pulse Purifier (Air Cleaner): Clean all the dust produced during the
operation of the whole system.

Classifying Screen: Screen the materials sorted by the separation machine, and screen out of large metal materials.

Magnetic Machine: Separate nickel from the metals.

Gravity Separator: Separate those finer materials got from the screening machine and separate the metal completely.

High-pressure blower: Keep the whole system in a negative state so as to collect the materials and purity the air.

Lithium batteries are a treasure trove of valuable resources; the key to efficient recovery lies in high-quality equipment. If you are launching a lithium battery recycling business, Gomine offers a comprehensive lithium battery recycling plant for you to choose from. We invite you to contact us at any time!