Mechanically Driven Li Dendrite Penetration: A New Perspective on Resolving the “Soft‐Penetrates‐Hard” Paradox

{"Replacing":[0],"flammable":[1],"liquid":[2],"electrolytes":[3,9,33],"and":[4,10,59,85,113,160,182,204],"graphite":[5],"anodes":[6],"with":[7,186],"solid":[8],"lithium":[11,14,27],"metal,":[12],"all-solid-state":[13],"metal":[15],"batteries":[16],"offer":[17],"a":[18,104,115,154,187],"compelling":[19],"solution":[20],"for":[21,95,118,165,176],"next-generation":[22],"energy":[23],"storage":[24],"[1,2].However,":[25],"soft":[26],"dendrites":[28],"can":[29],"penetrate":[30],"hard":[31],"ceramic":[32],"(such":[34],"as":[35],"garnet-type":[36],"LLZTO),":[37],"causing":[38],"short":[39],"circuits-a":[40],"\\"soft-penetrates-hard\\"":[41],"paradox":[42],"that":[43,91,197,206],"has":[44,71],"long":[45],"puzzled":[46],"the":[47,51,68,92,129,132,142,177,195],"academic":[48],"community":[49],"[3,4].Regarding":[50],"mechanism,":[52,131],"two":[53],"main":[54],"hypotheses":[55],"exist:":[56],"\\"mechanical":[57],"fracture\\"":[58],"\\"electron-leakage-induced":[60],"front":[61],"nucleation,\\"":[62],"but":[63,103],"direct":[64,126],"nanoscale":[65,166],"evidence":[66,127],"at":[67,201],"dendrite":[69,97,119,158,207],"tip":[70,159],"been":[72],"lacking":[73],"[5,6].Recently,":[74],"Zhang":[75],"et":[76],"al.":[77],"[7]":[78],"employed":[79],"cryogenic":[80],"transmission":[81],"Kikuchi":[82],"diffraction":[83],"(cryo-TKD-SEM)":[84],"phase-field":[86],"fracture":[87,184],"modeling":[88],"to":[89,145],"demonstrate":[90],"driving":[93],"force":[94],"Li":[96],"penetration":[98,130,208],"is":[99,209],"not":[100,210],"plastic":[101],"flow":[102],"nearly":[105],"plasticity-free":[106],"high":[107],"hydrostatic":[108],"stress,":[109],"overturning":[110],"traditional":[111],"understanding":[112],"providing":[114,161],"new":[116],"strategy":[117],"deflection":[120],"through":[121],"defect":[122],"engineering.To":[123],"lock":[124],"in":[125],"of":[128,153,190],"authors":[133],"designed":[134],"an":[135,162],"in-plane":[136],"cell":[137],"geometry":[138],"(Figure":[139,173],"1A),":[140],"thinning":[141],"LLZTO":[143],"electrolyte":[144],"about":[146,191],"150":[147],"μm,":[148],"thus":[149],"enabling":[150],"precise":[151],"localization":[152],"single":[155],"straight":[156],"through-thickness":[157],"ideal":[163],"platform":[164],"characterization.Based":[167],"on":[168],"this":[169],"design,":[170],"EBSD":[171],"analysis":[172],"1B)":[174],"captured,":[175],"first":[178],"time,":[179],"both":[180],"intergranular":[181],"transgranular":[183,188],"modes,":[185],"proportion":[189],"20%,":[192],"directly":[193],"refuting":[194],"hypothesis":[196],"\\"Li":[198],"nucleates":[199],"only":[200],"grain":[202,213],"boundaries\\"":[203],"indicating":[205],"exclusively":[211],"along":[212],"boundaries.":[214]}