Battery Research Materials: A Complete Buyer’s Guide for Lithium, Sodium, and Solid-State Cells

Why Single-Supplier Materials Sourcing Matters

Battery research materials sourcing is a fragmented mess. A typical research lab orders cathodes from one vendor, electrolytes from another, lithium metal from a third, coin cell hardware from a fourth, and pouch cell materials from a fifth. Lead times stack up. Quality control varies between suppliers. When something goes wrong in cell performance, debugging which input caused the problem is harder than the actual experiment.

Xnergy's approach is different. We supply the entire materials stack from a single catalog — 15 product categories covering cathodes, anodes, electrolytes (liquid and solid), binders, conductive additives, dispersants, current collectors, lithium and sodium metal, lithium alloys, Li-collector composite strips, coin cell hardware, and dry pouch cells.

Three practical advantages of single-supplier sourcing:

• Consistent quality control — All materials are batch-tracked from a single supply chain, with documented compatibility between products (the cathode and the electrolyte are designed to work together)
• One PO, one shipment, one timeline — No coordinating delivery dates from 5 different vendors
• Bulk pricing across categories — Volume discounts that don't reset because you switched suppliers

The rest of this guide walks through Xnergy's catalog by category, with specific product links, typical use cases, and pricing where available. For most categories, we link both to the relevant Xnergy materials catalog page and to detailed selection guides where applicable.

The Battery Research Materials Stack: 5 Layers

Every battery cell, regardless of chemistry, is built from a stack of five material layers. Understanding the stack helps map your research scope to the right materials:

Cathode Materials: Powders & Pre-Coated Sheets

Cathode materials are the largest category in battery research because the cathode is typically the performance-limiting component — it determines cell voltage, energy density, and cycle life. Xnergy supplies cathodes both as powders (for researchers who want to make their own slurries) and as pre-coated electrode sheets (for researchers focused on electrolytes, anodes, or full-cell evaluation).

Lithium-ion cathode powders

The mainstream Li-ion cathode chemistries:

Pre-coated cathode electrode sheets

For researchers who want to skip slurry preparation, casting, and drying:

Sodium-ion cathode materials

Sodium-ion cathodes have diverged into three major families — layered oxides (P2-type), polyanionic phosphates (NVP, NFPP, NVPF), and Prussian blue analogs. Xnergy supplies all three:

For a complete browse of all cathode options, visit the cathode materials catalog or the pre-coated electrode sheet catalog.

Anode Materials: Graphite, Silicon-Carbon, Hard Carbon, Metal Anodes

Anode materials span four major chemistries depending on cell type:

Graphite anode products

Silicon-carbon and hard carbon

For a complete anode catalog browse, see the anode materials catalog.

Liquid Electrolytes: Salts, Solvents, Additives, and Formulated Mixes

Liquid electrolyte research splits into four sub-categories: salts (LiPF₆, LiFSI, NaPF₆, etc.), solvents (EC, DMC, DEC, EMC, PC, VC), additives (FEC, VC, DTD, FB, SN, PST), and pre-formulated electrolytes (1M LiPF₆ in EC:DMC:DEC, etc.). Xnergy stocks all four with battery-grade purity.

Lithium electrolyte salts

Sodium & potassium electrolyte salts

Carbonate solvents

SEI-forming additives

Pre-formulated electrolytes

For a complete electrolyte browse, see the electrolytes catalog.

Solid Electrolytes: Halide, Sulfide, Oxide, Oxychloride, NASICON

Solid electrolytes are the materials that make all-solid-state batteries (ASSB) possible — they replace the liquid electrolyte and separator with an ionically conductive solid. Xnergy supplies solid electrolytes across all five major chemistry families used in modern ASSB research:

Halide solid electrolytes

Sulfide solid electrolytes

Oxide solid electrolytes (LLZO, LATP, LAGP)

Sodium solid electrolytes

For deeper analysis of solid electrolyte selection, see our existing guides: LZC Halide Family Guide, LTOC Selection Guide, LIC Guide, and Sodium ASSB Materials Guide. Or browse the full solid electrolytes catalog.

Lithium & Sodium Metal: Discs, Foils, Strips, Wires, Alloys

Metal anodes — lithium and sodium — are the energy-density frontier in battery research. Lithium metal anodes deliver roughly 10× the gravimetric capacity of graphite (3860 vs 370 mAh/g), making them essential for next-generation high-energy-density cells. Sodium metal serves the equivalent role for sodium-ion research. Both are highly air-reactive, with reactivity scaling roughly as Na > Li, and require careful handling and packaging that protects against atmospheric moisture and oxygen at every step from manufacture through use.

Beyond the chemistry, the practical reality of metal anode research is that form factor matters as much as purity. A lithium disc in a coin cell sees different mechanical conditions than a lithium foil in a pouch cell, and the same chemistry behaves very differently in each context. Xnergy's lithium metal catalog reflects this — we supply 11 distinct lithium metal product forms covering everything from discs for half cells to ultra-thin foils for high-energy-density designs to alloy strips for advanced anode architectures.

Lithium metal product family (11 forms)

The full lithium metal catalog covers every form factor used in modern battery research:

Lithium alloys for advanced anode research

Pure Li metal anodes have known issues that researchers have been wrestling with for decades: dendrite growth during cycling that eventually short-circuits the cell, parasitic side reactions with the electrolyte that consume both Li and electrolyte, and soft mechanical properties that complicate handling. Lithium alloys address these issues by trading a fraction of the gravimetric capacity for substantial gains in cycling stability and mechanical handling.

The most common lithium alloy systems in research are Li-Al (improved mechanical strength and reduced dendrite formation), Li-Mg (suppressed dendrite growth via solid-solution strengthening), Li-Sn (alternative anode chemistry with high theoretical capacity), and Li-B (stable plating-stripping behavior). Xnergy supplies all of these as discs and strips, plus custom multi-element alloys for specialized research:

Li-Collector composite strips

For researchers who want a pre-laminated lithium-on-current-collector for direct cell assembly — bypassing the in-house lamination step that often introduces variability — Xnergy supplies three composite strip products:

Sodium metal products

For sodium-ion battery research, Xnergy supplies pre-cut sodium chips (the most convenient form for coin cell research, with diameter pre-matched to standard CR2032 internal dimensions) and sodium foil rolls (for pouch cell research and custom cell architectures). All sodium metal ships in our 4-layer protective packaging system that maintains shelf life from days to months even after international shipping:

For more on sodium metal selection — chip vs foil decision matrix, packaging considerations, and global supply — see our Sodium Metal Foil & Chip Selection Guide. Browse the full catalogs: Metallic Lithium Series, Sodium Metal Materials, Lithium Alloys, Li-Collector Composite Strips.

Binders, Conductive Additives, Dispersants & Current Collectors

Auxiliary materials don't get the spotlight in battery research, but they determine whether your novel chemistry actually works in a cell. Bad binder choice means electrode delamination during cycling. Insufficient conductive carbon means high cell resistance and poor rate capability. Wrong dispersant means poor slurry rheology, inhomogeneous coating, and irreproducible electrode loading. Most published battery papers spend 2 sentences on auxiliary materials and 20 paragraphs on the active material — but in the lab, getting auxiliaries right is what determines whether a measurement is worth publishing in the first place.

Binders

Three binder families cover most battery research applications, each with distinct solvent compatibility, processing characteristics, and chemistry compatibility:

The binder selection is rarely "best in absolute terms" — it's "best for your specific electrode system." PVDF is the universal default for cathodes because it dissolves cleanly in NMP and produces robust, long-cycling electrodes with most cathode chemistries. SBR-CMC is increasingly replacing PVDF for anodes (and some cathodes) because aqueous processing is cheaper, greener, and avoids the NMP recovery infrastructure. PTFE is the dry-processing future — cells can be assembled without solvents at all, dramatically simplifying manufacturing and improving sustainability metrics.

For SBR binder selection (water-based vs cold-weather variants), see our SBR-451B Selection Guide and SBR-430B Cold-Weather Guide.

Conductive additives

Carbon additives provide electron transport pathways within the electrode active layer. Carbon black (C65, C02) is the standard — cheap, well-characterized, and compatible with most slurry systems. Carbon nanotubes (CNT) offer higher electrical conductivity at much lower loading (1-2 wt% CNT can replace 5-8 wt% carbon black), but require dispersant assistance because they aggregate in pristine form. The trade-off: CNT-based electrodes have higher energy density (less inactive carbon mass) but more complex slurry processing.

Dispersants for CNT processing

CNTs aggregate easily and need dispersants to form stable slurries. The choice of dispersant depends on the slurry solvent system:

Current collectors

Aluminum foil for cathodes, copper foil for anodes — with carbon-primer-coated variants for improved adhesion and reduced contact resistance. The primer coating is a thin layer of conductive carbon between the metal foil and the active layer; it improves both electron transfer (lower resistance) and mechanical adhesion (better cycle life). For most chemistries, primer-coated foil is recommended over uncoated; the cost difference is modest and the performance difference can be significant:

Browse the full catalogs: Binders, Conductive Additives, Dispersants, Current Collectors.

Coin Cell Hardware: Cases, Spacers, Springs & Specialty

Coin cell hardware is the most-used cell format in battery research because it provides the right balance of statistical power (you can make 50-100 cells per day for replicates), low material consumption (50-200 mg active material per cell), reproducible geometry (the case dimensions are tightly controlled by manufacture), and broad cycler compatibility (every battery cycler supports CR2032). Xnergy supplies the complete coin cell hardware range with current sale pricing on standard items and quote-based pricing for high-voltage and specialty hardware.

Standard 304SS hardware (sale-priced)

Specialty hardware: Al-Clad & In Situ XRD

Al-clad cases are required for high-voltage cathode research above 4.3V vs Li/Li+ — standard 304SS cases corrode under these conditions and contaminate the electrolyte. Kapton-window cases enable in situ X-ray diffraction during cycling, which has revolutionized battery research over the past decade by letting researchers watch cathode lattice evolution in real time:

For complete coin cell hardware selection guidance — including how to choose between CR2032/2025/2016 and when to switch to Al-Clad — see our Coin Cell Hardware Buyer's Guide. Browse the full coin cells catalog. For step-by-step coin cell assembly, see How to Make a Coin Cell tutorial.

Dry Pouch Cells: Pre-Assembled, Electrolyte-Ready

Dry pouch cells are fully assembled pouch cells shipped without electrolyte injection. The user fills electrolyte at their own facility before cycling, which is one of the most useful product categories Xnergy offers and arguably one of the things that distinguishes us from generic materials suppliers. Two practical benefits:

• Extended shelf life — The electrochemistry is dormant until electrolyte is added, so cells can be stockpiled for months or even years without performance degradation. This is impossible with pre-filled cells, which begin self-discharging and developing SEI the moment electrolyte contacts the electrodes
• Electrolyte customization — Researchers can test different electrolyte formulations in identical baseline cells, isolating the electrolyte's contribution to performance. This is a control experiment that's effectively impossible with pre-filled cells, and it's the right way to publish electrolyte additive research

Xnergy's dry pouch cell catalog covers Li-ion, Li metal, and sodium-ion chemistries with 25+ configurations. Pricing ranges from $77/cell (LFP/graphite anode-free, the most affordable entry point) to $445/cell (high-energy NCM90/Li metal, frontier energy density chemistry).

Lithium-ion dry pouch cells (graphite or Si/C anode)

Anode-free dry pouch cells

Anode-free designs let researchers study lithium plating-stripping behavior directly on the current collector — a frontier for next-gen Li-metal-style cells. Without a pre-deposited Li metal anode, all the lithium that participates in cycling has to come from the cathode, which puts severe demands on the electrolyte and SEI chemistry. This is the chemistry where breakthrough cycle life results would have transformative impact:

Lithium metal dry pouch cells (high-energy frontier)

Lithium metal pouch cells are the highest-energy-density cell format currently producible. Pairing high-Ni cathodes (NCM811, NCM90) with Li metal anodes pushes pouch cell energy density toward 400 Wh/kg, well above the 280-300 Wh/kg ceiling of conventional Li-ion. The challenges are well-known: Li dendrite growth, electrolyte consumption, and capacity fade over hundreds of cycles. These are the cells where novel electrolyte additives and protective interphase research has the highest impact:

Sodium-ion dry pouch cells

Sodium-ion dry pouch cells are the fastest-growing category in our catalog as commercial Na-ion production scales up in 2025-2026. Both polyanionic (NVP, NFPP) and layered oxide (P2) cathode chemistries are available, paired with Kuraray hard carbon anodes (the de facto standard) or sodium metal:

For complete dry pouch cell catalog, see Dry Pouch Cell catalog.

4 Research Paths: Materials Roadmap by Chemistry

If you're starting a new battery research project and want a quick chemistry-by-chemistry materials roadmap, the four cards below summarize what to order from Xnergy. Each path represents a typical research scope — conventional lithium-ion, sodium-ion, all-solid-state, and lithium metal — with the materials list optimized for that scope's requirements:

Bulk Pricing & Lead Time for Research Programs

Xnergy supports both small-scale academic research (single PIs running 50–100 cells per month) and production-scale industrial R&D programs (research labs running cell-level screening at 10,000+ cells per year). Pricing scales with order volume; standard items ship within 1 week. The pricing tiers below summarize how we structure orders by volume and customization level:

Lead time tiers

Research applications supported

Frequently Asked Questions

Deeper Selection Guides for Specific Materials

This pillar guide covers the complete catalog at high level. For deeper analysis on specific material families, see our detailed selection guides: