https://www.unityvoltsolutions.com/blog daily 0.75 2026-07-14 https://www.unityvoltsolutions.com/blog/cell-kpi-summary monthly 0.5 2026-06-14 https://www.unityvoltsolutions.com/blog/afm-xas-nmr-advanced-characterization-li-ion monthly 0.5 2026-06-14 https://www.unityvoltsolutions.com/blog/bet-dsc-tga-physical-thermal-properties-li-ion-cathodes monthly 0.5 2026-06-14 https://www.unityvoltsolutions.com/blog/tem-hrtem-nanostructure-imaging-li-ion-cathodes monthly 0.5 2026-07-14 https://images.squarespace-cdn.com/content/v1/6870a61da3af0b47861cbcf1/bf703107-003f-40dd-9741-725d7652176f/lfp-tem-hrtem-nanostructure-lattice-fringes.png.png Blog - 1.5. Nanostructure Imaging (TEM & HRTEM) - Make it stand out Figure 1. TEM and HRTEM images of the carbon-coated LFP/C-60 sample from Peng et al. 2023. https://www.unityvoltsolutions.com/blog/raman-ftir-lattice-vibrations-li-ion-materials monthly 0.5 2026-07-14 https://images.squarespace-cdn.com/content/v1/6870a61da3af0b47861cbcf1/fdce5c59-9215-404e-89c4-180b147a3827/lfp-raman-spectrum-carbon-coating-structure.jpg Blog - 1.4. Vibrational Spectroscopy (Raman & FTIR) - Figure 1. Raman spectrum of carbon-coated LiFePO₄/C prepared using urea-assisted combustion, with sucrose used as the carbon source, followed by heat treatment at 600°C. The x-axis, Raman shift (cm⁻¹), identifies different vibrational modes, while the y-axis, intensity (a.u.), shows their relative signal strength. Raman spectrum of carbon-coated LiFePO₄/C prepared using urea-assisted combustion, with sucrose used as the carbon source, followed by heat treatment at 600°C. The x-axis, Raman shift (cm⁻¹), identifies different vibrational modes, while the y-axis, intensity (a.u.), shows their relative signal strength. https://images.squarespace-cdn.com/content/v1/6870a61da3af0b47861cbcf1/dc7ce190-1cf3-45a9-87c2-18fa3e04b7fc/lfp-ftir-infrared-spectrum-functional-groups.jpg Blog - 1.4. Vibrational Spectroscopy (Raman & FTIR) - Figure 2. FTIR spectrum of the same carbon-coated LiFePO₄/C material after heat treatment at 600°C. The x-axis, wavenumber (cm⁻¹), identifies the vibrational energy, while the y-axis, transmittance (%), shows how much infrared light passes through the sample. Because this is a transmittance spectrum, the downward features represent infrared absorption bands. https://www.unityvoltsolutions.com/blog/xrd-xps-structural-surface-chemistry-li-ion-cathodes monthly 0.5 2026-07-14 https://images.squarespace-cdn.com/content/v1/6870a61da3af0b47861cbcf1/a97de918-4307-420b-801b-967585f39cb4/lfp-xrd-crystal-structure-diffraction-pattern.png Blog - 1.3. Structural & Surface Chemistry (XRD & XPS) - Make it stand out Figure 1. XRD patterns of three carbon-coated LFP samples prepared using different mixtures of phytic acid and phosphoric acid as the phosphorus source. LFP/C-0, LFP/C-60 and LFP/C-100 used 0%, 60% and 100% phytic acid, respectively; the remainder was phosphoric acid. These names describe the synthesis route and do not indicate carbon content or material grade. Image Source: Peng et al. 2023 https://images.squarespace-cdn.com/content/v1/6870a61da3af0b47861cbcf1/4b216cda-432d-4e4f-9811-a4adf17caf1a/lfp-xps-surface-chemistry-spectra.png Blog - 1.3. Structural & Surface Chemistry (XRD & XPS) - Make it stand out Figure 2. XPS survey and high-resolution spectra of the carbon-coated LFP/C-60 sample. Panel (a) is a broad survey scan showing the elements detected at the particle surface. Panels (b)–(e) examine the Fe 2p, P 2p, C 1s and O 1s regions in more detail. The The x-axis, binding energy (eV), indicates how strongly an electron is bound to an atom, and helps identify the element and its chemical state, while the y-axis, intensity (a.u.), shows the relative strength of the detected signal. Image Source: Peng et al. 2023 https://www.unityvoltsolutions.com/blog/fe-sem-eds-morphology-composition-li-ion-cathodes monthly 0.5 2026-07-14 https://images.squarespace-cdn.com/content/v1/6870a61da3af0b47861cbcf1/b90f641b-5b23-4f40-99c1-59d45eac145f/lfp-sem-eds-morphology-elemental-mapping.webp Blog - 1.2. Morphology & Composition (FE-SEM & EDS) - Make it stand out Figure 1. FE-SEM images of three LiFePO₄/C samples showing differences in particle morphology, surface texture, carbon distribution and agglomeration, together with corresponding EDS elemental maps for Fe, C, O and P. Panel (b) shows the most regular secondary-particle morphology and uniform distribution, while panel (a) contains visible amorphous-carbon-rich regions and panel (c) shows substantial agglomeration. Note: Conventional SEM–EDS does not reliably detect lithium and cannot independently confirm LFP phase purity, elemental stoichiometry or carbon-coating thickness. XRD, XPS and TEM provide complementary information. 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