Equipment for testing the content of trace metal elements such as iron, sodium, chromium, copper, nickel, aluminum, diamond, zinc, etc. in graphite negative electrode materials for lithium-ion batteries

The commonly used equipment for testing the content of trace metal elements such as iron, sodium, chromium, copper, nickel, aluminum, cobalt, zinc, etc. in graphite negative electrode materials for lithium-ion batteries is the inductively coupled plasma optical emission spectrometer (ICP-OES). The following is a detailed introduction to the equipment:

1、 Core advantages

1. High sensitivity and low detection limit: ICP-OES can detect extremely low concentrations of metal elements, with a detection limit typically in the ppb (parts per billion) range, meeting the stringent requirements for trace metal element detection in graphite based negative electrode materials for lithium-ion batteries.

2. Multi element synchronous detection: It can simultaneously determine the content of multiple metal elements, such as iron, sodium, chromium, copper, nickel, aluminum, cobalt, zinc, etc., to improve detection efficiency.

3. Wide linear range: covering the concentration range of elements from trace to constant, suitable for element content detection of graphite negative electrode materials of different batches and grades.

4. Strong anti-interference ability: By optimizing instrument parameters and adopting advanced algorithms, matrix effects and spectral line interference are effectively reduced to ensure the accuracy of detection results.

2、 Typical models and applications

1. ICP-OES series sold by Shenzhen Tianchuangmei Technology Co., Ltd.:

Application case: According to the GB/T 24533-2019 standard for graphite negative electrode materials for lithium-ion batteries, a measurement method was established using this equipment. The experimental results showed that the standard curve had good linearity, high recovery rate, and good repeatability.