252 articles
Sodium-ion battery anode
The sodium-ion battery anode is the negative electrode of a sodium-ion battery, storing sodium ions during charging; hard carbon is the standard material, with alloying alternatives like antimony and phosphorus.
Soft carbon
Soft carbon, or graphitizable carbon, is a disordered carbon that converts to graphite when heated above 2500 °C, used as an anode in sodium-ion batteries and as a graphite precursor.
Solid electrolyte
A solid-state electrolyte is a solid material, typically a ceramic, glass-ceramic, polymer, or composite, that conducts lithium, sodium, or potassium ions between a battery's electrodes while suppressing electronic conduction.
Solid electrolyte interphase
The solid electrolyte interphase (SEI) is a nanoscale passivation layer on lithium batteries' negative electrode that conducts ions but blocks electrons, forming mainly during the first charge.
Solid electrolyte interphase engineering
Solid electrolyte interphase (SEI) engineering is the deliberate design of the film that forms on a battery anode from electrolyte decomposition, aiming for stable, lithium-metal cells.
Solid-state composite cathode
A solid-state composite cathode is the positive electrode of an all-solid-state battery, a solid mix of active material, solid electrolyte, carbon, and binder that must conduct ions and electrons.
Solvent-in-salt electrolyte
A solvent-in-salt (SIS) electrolyte is a battery electrolyte in which salt outnumbers solvent, so anions enter the cation's solvation sheath; the aqueous variant is water-in-salt.
Succinonitrile
Succinonitrile, also called butanedinitrile, is a highly toxic, colorless waxy dinitrile solid melting at 57 °C that forms a plastic crystal used as a solid solvent in battery electrolytes.
Sulfide solid electrolyte
A sulfide solid electrolyte is a sulfur-based ceramic that conducts lithium or sodium ions while blocking electrons, serving as the ion-transporting separator in all-solid-state batteries.
Sulfide solid-state battery
Solid-state lithium batteries with sulfide electrolytes are rechargeable batteries in which the flammable liquid electrolyte is replaced by a sulfide solid, such as LGPS or Li₆PS₅Cl, matching liquid electrolytes in ionic conductivity and enabling lithium-metal anodes.
Sulfurized polyacrylonitrile
Sulfurized polyacrylonitrile (SPAN, also written S@pPAN or S@PAN) is a composite cathode material for lithium–sulfur batteries, made by co-heating sulfur with polyacrylonitrile and first reported in July 2002 by Jiulin Wang and colleagues.
SungEel HiTech
SungEel HiTech (성일하이텍) is a South Korean battery recycling company founded in 2000, recovering nickel, cobalt, and lithium from used batteries at facilities across six countries.
Super P (conductive additive)
Super P is a conductive carbon black made by Timcal, now part of Imerys, used in lithium-ion battery electrodes to form the electron-conducting network in cathodes and anodes.
Superconcentrated electrolyte
A superconcentrated electrolyte is a battery electrolyte with salt concentrations above roughly 3 M, where ion pairing dominates and anion-derived films stabilize lithium-metal and high-voltage electrodes.
Superionic conductor
A superionic conductor is a solid material in which one ionic species moves with liquid-like mobility through a rigid crystal, giving exceptionally high ionic conductivity and use in solid-state batteries.
Surface rocksalt reconstruction in Ni-rich cathodes
Surface rocksalt reconstruction is the degradation of Ni-rich layered lithium-ion cathode surfaces, which transform from layered to spinel to inert rock-salt phases, accelerated by high nickel content, state of charge, and temperature.
Synthetic graphite
Synthetic graphite, also called artificial graphite, is graphite made by heating petroleum coke and coal tar pitch to about 3000 °C, a key lithium-ion battery anode material.
Taijin New Energy
Taijin New Energy, or Taijin New Energy & Materials Sci-Tech, is a Xi'an-based Chinese company making copper foil production equipment and titanium electrodes, ranked first in China's cathode drum market.
Terrafame
Terrafame is a Finnish state-majority-owned multi-metal company in Sotkamo that mines nickel, cobalt, zinc, copper, and uranium, founded in 2015 to acquire the bankrupt Talvivaara mine.
Thacker Pass
Thacker Pass is a lithium mine under construction in Humboldt County, Nevada, owned by Lithium Americas and General Motors and holding one of the world's largest lithium reserves.
Thio-LISICON
Thio-LISICON (thio-lithium superionic conductor) is a family of crystalline sulfide solid electrolytes for lithium batteries, introduced by Ryoji Kanno and coworkers in 2000 as the first crystalline sulfide electrolytes.
Tianneng New Materials
Tianneng New Materials (天能新材料) is a Chinese lithium-ion battery recycling company founded in 2018 in Changxing, Zhejiang, as the spent-battery recycling arm of Zhang Tianren's Tianneng group.
Tianqi Lithium Corporation
Tianqi Lithium Corporation (天齐锂业) is a Chinese lithium producer headquartered in Chengdu, Sichuan, dually listed in Shenzhen and Hong Kong, operating the Greenbushes mine in Australia.
Tin oxide anode
A tin oxide anode is a battery negative electrode based on tin dioxide that stores lithium and sodium, with a theoretical capacity up to 1494 mAh g⁻¹, far above graphite's 372.
Titanium dioxide anode
A titanium dioxide anode is a battery electrode where titanium dioxide (TiO₂) stores lithium or sodium ions, offering safer, longer-lived operation than graphite at about 1.5 to 1.8 V.
Titanium disulfide
Titanium disulfide (TiS₂) is a layered solid used as the cathode of the first rechargeable lithium battery, developed by M. Stanley Whittingham at Exxon in the 1970s.
Tokai Carbon
Tokai Carbon (東海カーボン) is a Japanese carbon products manufacturer headquartered in Tokyo. Founded in 1918 to make graphite electrodes for steelmaking, it now also produces lithium-ion battery anode materials.
Ultium CAM
Ultium CAM is a joint venture of POSCO Future M and General Motors, formed in 2022, that produces cathode active material for GM's Ultium batteries at Bécancour, Quebec.
Ultra-high-nickel cathodes
Ultra-high-nickel cathodes are layered lithium-ion battery cathode materials, such as NCM90 and NCM95, in which nickel accounts for at least 90 mol% of transition metals, delivering high capacity while reducing cobalt use.
Vinylene carbonate
Vinylene carbonate, or 1,3-dioxol-2-one, is a cyclic carbonate and the most widely used electrolyte additive in lithium-ion batteries, introduced by Saft in 1994.