//! [`MaterialComposition`] — one declared constituent material.
use serde::{Deserialize, Serialize};
/// Material composition entry for cathode, anode, or electrolyte.
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct MaterialComposition {
/// Chemical name or formula, e.g. `"LiFePO4"`, `"graphite"`, `"LiPF6"`.
pub name: String,
/// Weight percentage in the component (0.0–100.0).
pub weight_pct: f64,
/// CAS Registry Number if applicable.
#[serde(skip_serializing_if = "Option::is_none")]
pub cas_number: Option<String>,
}