Drone roj teeb feem ntau yog xa mus rau lithium{0}}polymer (LiPo) lossis lithium- ion roj teeb. Lawv cov ntsiab lus tseem ceeb yog nyob ntawm plaub yam tseem ceeb: cathode, anode, electrolyte, thiab cais. Ua ke, cov ntaub ntawv no txiav txim siab lub roj teeb lub zog ceev thiab kev ua haujlwm tawm.
Cov khoom siv cathode ua lub luag haujlwm tseem ceeb ntawm lub roj teeb lub zog. Cov ntaub ntawv muaj xws li lithium cobalt oxide (LiCoO₂) thiab lithium nickel cobalt manganese oxide (NCM). These materials possess high energy density, enabling them to deliver robust electrical output while maintaining a relatively low weight-a characteristic well-suited to the endurance and weight requirements of drones.
Cov khoom siv anode feem ntau muaj graphite, txawm hais tias qee qhov siab - roj teeb ua haujlwm siv silicon - carbon composites. Lub luag haujlwm ntawm lub anode yog khaws cia lithium ions; nws absorbs ions thaum lub sij hawm them tus txheej txheem thiab tso tawm thaum lub sij hawm tso tawm, yog li yooj yim hloov dua siab tshiab ntawm hluav taws xob zog. Graphite tam sim no yog cov kev daws teeb meem dav tshaj plaws vim nws cov qauv ruaj khov thiab kev ua haujlwm zoo heev.
Cov electrolyte feem ntau muaj cov kuab tshuaj organic thiab lithium ntsev (xws li LiPF₆); Nws yog lub luag haujlwm rau kev ua cov lithium ions ntawm cathode thiab anode, ua haujlwm zoo ua lub hauv paus ntawm lub roj teeb sab hauv "ionic channel." Cov khoom sib cais, cov khoom siv microporous polymer, ua haujlwm rau lub cev cais cov cathode los ntawm anode- tiv thaiv kev luv luv -thaum ib txhij tso cai rau kev hla ntawm lithium ions.
Sab nraud, lub roj teeb sib dhos kuj suav nrog txhuas- cov ntaub ntawv ntim yas laminate thiab txuas cov tabs (ua los ntawm tooj liab lossis txhuas) kom muaj kev ruaj ntseg ntawm cov qauv thiab pab txhawb kev sib kis tam sim no. It is precisely this combination of materials that endows drone batteries with their characteristic features: high energy density, lightweight design, and high-rate discharge capabilities.