你不能在v-html中使用Vue-Component。
使用

• v-runtime-template for vue2/nuxt2
• vue3-runtime-template for vue3/nuxt3

而不是v-html
nuxt 3示例（在ts中使用eslint）：

yarn add vue3-runtime-template

nuxt.config.ts

export default defineNuxtConfig({
    hooks: {
        'vite:extendConfig'(config: { resolve: { alias: { vue: string; }; }; }, { isClient }: unknown) {
            if (isClient) {
                config.resolve.alias.vue = 'vue/dist/vue.esm-bundler';
            }
        }
    },
});

在组件中

<template>
    <v-runtime-template
        :template="templateString"/>
</template>

<script lang="ts" setup>

import VRuntimeTemplate from 'vue3-runtime-template';

const templateString = ref('');

watch(
    () => {
        // return something you need to watch
    },
    () {
        templateString.value = templateString.value.concat(
            `<div><fa icon="circle" /></div>`
        );
    }
);

</script>

<script lang="ts">

import Fa from 'where-your-fa-component-located';

export default {
    components: {
        // eslint-disable-next-line vue/no-unused-components
        Fa,
    }
};

</script>