JFIF\Photoshop 3.08BIM@@Optical Fiber Sensors Enable Breakthrough Real-Time Sodium-Ion B720260813PSCIENMAGUAuthorbOptical Fiber Sensors Enable Breakthrough Real-Time Sodium-Ion Battery State-of-Charge Measurement Science@https://scienmag.com/optical-fiber-sensors-enable-breakthrough-r© 2026 Sciencehttps://scienmag.com/Sodium-ion batteries are moving closer to the center of the global energy-storage conversation, and a new optical sensor may help solve one of their most persistent problems: seeing exactly what happens inside a working battery. Researchers from Jinan University and Wuhan University have developed an implantable multiresonant fiber-optic grating sensor capable of tracking sodium-ion movement […]ScienceChe Chemistry Chemistry#advanced energy storage diagnostics)affordable large-scale battery monitoring(electrode-electrolyte interface analysis0fiber-optic sensing technology in energy storage.implantable optical sensors for energy storage(multiresonant fiber-optic grating sensor'optical fiber sensor for battery health(overcoming sodium-ion battery challenges#real-time ion transport measurement'sodium resource advantages in batteries)sodium-ion battery performance assessment-Sodium-ion battery state-of-charge monitoringC    !'"#%%%),($+!$%$C   $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$"D !1AQaqr"2#$3BCRb%&4DSs5c2!1Q2Aq"3ab#$% ?I$I$!$8eUr/kc{\t *B\4bIv|sz)|ۓ;P&zaڰ>mzK}†<]#e. ~jiK̗Tg鐈͞O9|V|(+f _F8!aݙB][L5Zv{UR}޸)V'Bu]+4NoLr[4f @Yl ugumuCl"8;VX}a <8`ὒ8SzEד__B,;i- uWK_cW1 HKx.$nNt$F*3Il_Zq2ӪHi*qfG,V]\Bތ< &zٛ4O+Mdm.q=@++ |e&V]~evgnJņT  0{{׉jUU*r0[١[r ]ț&oy|O\O=M}h\&RrVF#mԇ)C s15b\j-U?e}|RK s\I$7R Z NQI&NuN+w MXE%ԯ1%r0RњIUQnp{kv`1lbnE J:ئ[Im)`jUF$%FV[5{LIZ]ې1yn#oU& B/Yr.useTBFXC}vUw=D3nIt0m*OK3w[GJЇYud%.ڜ ɿ{͒ SWd7'5714J>ѩ!hǙ˝yi5cZѐ̰xG/|k8LJS,K+𹍐3B{qsqr{NaZZ{XeX=KmR{XqjWIh7{Z;e j1ksn¥{n)Gp||Lz}3&Č(]҂v"!(y :cȲbYO)d~OLN@%hA1hQU,CK ;T/7M݊_uttu  fDi*<Ffzl[Ԕi-Q[Ci^PJAsܺT]=h(uŀ5Gzn[_ζW_(- v(ұ'|Ho:U=o`\!;MJ6mF=qv8GaY gxxn.e[WY%%^_P $V %dfnCiuk}&ٴO7kbqj~*Eӈ䯕S)e'mCT;QyF;`?wCJEo\jP%Ņu?m_N7IR[[=x0ǧʇ<̳PHKOs$;f>w hxq$Q"Fu1TRVB|Qn)09s!(LG.+jִeEN/PKx^<Z"Lrq .1@C?ه94d;1zɲwJx⎦Eo\LT$6!v^=뱍非!Q{Mb/f_/0k4k\6%}i(GλRrx}fSELx%iI(jjBb+@[dk/#&r5:It6rY2Npm6ӼZIO8Nb eRPZZNHo/uaJ#;^qhtujdPR1 04!Ǖh'ϙf? oRZ>8 ڬ?UI;yJw5U]xݖKhq&M9#(\lE3Dn#=WElo.7gЂaXHԥotF++I(Hl}U=)nz+ UBD9_i|`0Rҡx3;bagН/ǦoW-4-8Lvg{=5~rO7UʽL/253cyz Zou!l{ẬK078Ų  (l9}C,T[&MZ.4O\$p:GݰݝMPﲫu[ҭ8N>ou7iI8b>C7&bsT%G*Nņ毁pizhLR92qɜ\Tlњy]$#$~"2 p?uf$Le8qo" ̱iP;XhO]u-=3Ot 讬d95c5)C$tPfDsz`9)=KM)g a[kU\c:A**v17j:NCn^O/#)xV=[J*AEY'u?8oq=35qڶķK]P1ꮡԱMH4m,N? PX]FebPXb +Q8o߼}ʑҮ!?g>&^\Iq$iZhiXܱ%ij!am;3>cys\VnO;rgfHQT3^e?cCUPXzSzAB'f,X.Ls[p|%k9u1 f]v*! ם[N5).m2ķچNi]I|.vG3̄'2\⺿ï3>Ogj4zc~5ғβ^LO&J4E'CN:>y